How many arrivals were much more delayed than others (i.e., positive outliers with z-score of time difference > 3)? (e) How many flights arrived much earlier than scheduled compared to others (i.e., negative outliers with z-score of time difference < -3)?

Answer:

is this correct? hope it works

Answer:

The difference of a number and 4 is 11

=> That number is 11 + 4 = 15  

The quotient of a number and 13 is 78

=> The number is 13 x 78 = 1014

6.5 more than a number is 19.1

=> The number is 19.1 - 6.5 = 12.6

Hope this helps!

:)

Answer:

This can be done in 240 ways.

Step-by-step explanation:

Number of arrangments:

The possible number of arrangments of n elements is given by the following formula:

[tex]A_{n} = n![/tex]

In this question:

7 people(camp counselor and six campers).

Camp counselor in the middle.

Camper who start food fights either to his left or to his right. For each of these cases, the other 5 campers are arranged in 5 positions. Then

How many ways:

[tex]T = 2A_{5} = 2*(5!) = 240[/tex]

This can be done in 240 ways.

Answer:

car = 1.1 mi/min

bus = 1.05 mi/min

car travels faster

Step-by-step explanation:

recall that speed is given by the gradient (i.e slope) of a distance vs time graph or equation.

for the car:

equation is y = 1.1x

recall that for an equation in the form y = mx + b, slope = m

if we compare the given equation to the general equation, it is clear that

speed of car = slope = m = 1.1 miles/min  (answer)

for the bus,

we are given 2 points (2,2.1) and (4,4.2)

if we apply the formula for slope (see attached for reference)

slope, m

= (4.2 - 2.1) / (4 - 2)

= 2.1 / 2

= 1.05 mi/min= speed of bus (answer)

comparing the 2 speeds, we can see that the car has the higher speed (travels faster).

Answer:

Car:1.1

Bus:1.05

Car is going faster.

Step-by-step explanation:

This is right. I got it right on Big Ideas Math (Pre-Algebra)

Answer:

Answer is given below with explanations.

Step-by-step explanation:

Given that triangle ABC is similar to triangle PQR

Then

THEN THE CORRECT OPTIONS ARE

OPTION D) AND

OPTION E)

HAVE A NICE DAY!

THANKS FOR GIVING ME THE OPPORTUNITY TO ANSWER YOUR QUESTION.

Answer:

4 hours.

Step-by-step explanation:

Answer:

19.8%

Step-by-step explanation:

We have the following formula for continuous compound interest:

A = P * e ^ (i * t)

Where:

A is the final value

P is the initial investment

i is the interest rate in decimal

t is time.

The time can be calculated as follows:

25 - 18 = 7

That is, the time corresponds to 7 years. In addition, A is 20,000 for A and P would be 5,000, we replace:

20000 = 5000 * e ^ (7 * i)

20000/5000 = e ^ (7 * i)

e ^ (7 * i) = 4

ln e ^ (7 * i) = ln 4

7 * i = ln 4

i = (ln 4) / 7

i = 0.198

Which means that the rounded percentage will be 19.8% per year

The rate of growth needed to achieve this goal is 22%

A compound interest is given by the formula:

[tex]A=P(1+\frac{r}{n} )^{nt}[/tex]

Where A is the final amount, r is the rate, t is the period, P is the principal and n is the number of times compounded in a period.

Given that A = 20000, P = 5000, t = 7 (25 - 18). hence:

[tex]20000=5000(1+\frac{r}{1} )^{7*1}\\\\4=(1+r )^{7}\\\\\\ln(4)=7\ ln(1+r)\\\\r=0.22[/tex]

Therefore the rate of growth needed to achieve this goal is 22%

Find out more at: https://brainly.com/question/22803385

Answer:

40.192

Step-by-step explanation:

C=D(pi)

D=6.2*2

C=12.8*3.12

C=40.192

Answer:40.192

Step-by-step explanation:the formula for a circumference if a circle is C=2•3.14•r^2 fill in for r and calculate for your answer

Answer:

3ft

Step-by-step explanation:

volume = l*w*h

To solve use what you know.

11.08 ft^3 = 2.5 ft * 1.3 ft * X ft

2.5 ft *1.3 ft =3.5 ft^2

11.08ft^3 / 3.5ft^2 = 3.409 ft

nearest whole number is 3 ft

Answer:

3 yards

Step-by-step explanation:

Divide inches by 36

[tex]108/36\\=3yards[/tex]

Answer:

[tex]3 \: \: yards[/tex]

Step-by-step explanation:

[tex]1 \: \: yard = 36\: \: inches \\ yard \: \: x = 108 \: \: inches[/tex]

So,

[tex] 1 = 36 \\ x = 108 \\ \\ cross \: \: \: multiple \\ \\ 108 = 36x \\ \frac{108}{36} = \frac{36x}{36} \\ x = 3 \: \: yards[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

64.5%

Step-by-step explanation:

Initial amount N° = ?

Remaining amount after decay = N = ?

k = decay constant =  0.00012 [tex]yr^{-1}[/tex]

t = time = 3650​ year

fraction remaining will be N/N°

From the decay equation, N = N°[tex]e^{-kt}[/tex]

N/N° = [tex]e^{-kt}[/tex]

N/N° = [tex]e^{-0.00012 x 3650 }[/tex]

N/N° = [tex]e^{-0.438}[/tex]

N/N° = 0.645 = 64.5%

8 * 10^3 is larger than 4 * 10^2

10*10*10 = 1000 * 8 = 8000

10*10= 100 * 4 = 400

10..................

Answer:

700.4 cm

Step-by-step explanation:

This involves two similar triangles.

Both triangles are right triangles.

One has legs measuring 1 cm and 30 cm. We can find the hypotenuse by using the Pythagorean theorem.

(1 cm)^2 + (30 cm)^2 = c^2

c^2 = 901 cm^2

c = sqrt(901) cm

The second triangle has one leg with length 700 cm. This leg corresponds to the 30-cm leg in the other triangle. Since the triangles are similar, we can use a proportion to find the hypotenuse of the second triangle.

(30 cm)/(700 cm) = [sqrt(901) cm]/x

3/70 = sqrt(901) cm/x

3x = 70 * sqrt(901) cm

x = 70 * sqrt(901) cm/3

x = 700.4 cm

Answer: 700.4 cm

The length of drainpipe is 700.4 cm.

The relationship between the three sides of a right-angled triangle is explained by the Pythagoras theorem, commonly known as the Pythagorean theorem. The Pythagorean theorem states that the square of a triangle's hypotenuse is equal to the sum of its other two sides' squares.

One has legs measuring 1 cm and 30 cm.

Using Pythagorean theorem.

(1 cm)² + (30 cm)² = c²

c² = 901

c =√901 cm

Since the triangles are similar, we can use a proportion to find the hypotenuse of the second triangle.

(30 cm)/(700 cm) = [√(901) cm]/x

3/70 = √(901) cm/x

3x = 70 x √(901) cm

x = 700.4 cm

Learn more about Pythagoras theorem here:

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Answer:

9/15

16/25

3/4

5/6

Step-by-step explanation:

Convert them to decimals then order them

Answer:

16/25, 9/15, 5/6, 3/4

Step-by-step explanation:

16/25

9/15

5/6

3/4

Answer:

The farmer has 4 cows and 15 chickens.

Step-by-step explanation:

This question can be solved using a system of equations.

I am going to say that:

x is the number of cows

y is the number of chickens.

A farmer has a total of 21 cows and chickens altogether

This means that x + y = 21.

The animals have 54 legs

A cow has four legs, while a chicken has 2 legs. So

4x + 2y = 54.

From the first equation:

y = 21 - x

Replacing

4x + 2(21 - x) = 54

4x + 42 - 2x = 54

2x = 12

x = 6

y = 21 - x = 21 - 6 = 15

The farmer has 4 cows and 15 chickens.

Answer: 30, 60 and 80

Step-by-step explanation:

measures 80,40, and 60. And sets of angles such as 20, 120, and 40 will make two different triangles.

To try three measures that dont add up to 180 will never make a triangle.

One of them can be 30, 60, 80

Answer:

C

Step-by-step explanation:

[tex]x=2+\sqrt{x-2} \\\\x-2=\sqrt{x-2} \\\\(x-2)^2=\pm(x-2) \\\\x^2-4x+4=\pm(x-2) \\\\[/tex]

[tex]x^2-5x+6=0[/tex] OR [tex]x^2+3x+2=0[/tex]

x=2 and 3

Hope this helps!

Answer:

The answer is option 3.

Step-by-step explanation:

Firstly, we have to move the unrelated term to the other side :

[tex]x = 2 + \sqrt{x - 2} [/tex]

[tex]x - 2 = \sqrt{x - 2} [/tex]

Then, you have to get rid of square root by squaring both sides :

[tex] {(x - 2)}^{2} = {( \sqrt{x - 2} )}^{2} [/tex]

[tex] {x}^{2} - 4x + 2 = x - 2[/tex]

[tex] {x}^{2} - 4x + 4 - x + 2 = 0[/tex]

[tex] {x}^{2} - 5x + 6 = 0[/tex]

Next, you have to solve it :

[tex] {x}^{2} - 5x + 6 = 0[/tex]

[tex] {x}^{2} - 2x - 3x + 6 = 0[/tex]

[tex]x(x - 2) - 3(x - 2) = 0[/tex]

[tex](x - 2)(x - 3) = 0[/tex]

[tex]x - 2 = 0 \\ x = 2[/tex]

[tex]x - 3 = 0 \\ x = 3[/tex]

Answer:

probability (x ≤2) = 0.64

Step-by-step explanation:

P(2 or fewer) = probability of 2 or fewer

probability of (2 or fewer) = probability (x ≤2)

probability of (2 or fewer) = probability when x is 0 + probability when x is 1 + probability when x is 2

probability of (2 or fewer) = probability (x =0) + probability of (x =1 ) + probability (x= 2)

probability of (x=0) = 0.09​

probability of (x=1) = 0.26​ ​

probability of (x =2) = 0.29

probability of (2 or fewer) = 0.09​ + 0.26​ + 0.29​ = 0.64

probability (2 or fewer) = probability (x ≤2) = 0.64

Answer:

[tex] P(X \leq 2)= P(X=0) +P(X=1)+P(X=2)[/tex]

And replacing we got:

[tex] P(X \leq 2)= 0.09 +0.26+0.29 = 0.64[/tex]

And the probability that X would be 2 or lower is 0.64

Step-by-step explanation:

For this case we have the following probability distribution:

x         0       1       2       3         4      5

P(x) 0.09 0.26  0.29  0.20  0.09  0.07

And we want to find the following probability:

[tex] P(X \leq 2)[/tex]

And we can find the probability like this:

[tex] P(X \leq 2)= P(X=0) +P(X=1)+P(X=2)[/tex]

And replacing we got:

[tex] P(X \leq 2)= 0.09 +0.26+0.29 = 0.64[/tex]

And the probability that X would be 2 or lower is 0.64

Answer:

cats constitute the same fraction of animals adopted as not adopted

(i am actually not that sure)

Answer:

a

Step-by-step explanation:

as mamy cats as dogs are addopted

Answer:

Answer for (a) to (e) = 0.32

Calculate the ratio to the nearest hundredth.

Find the Ratio of Diameter (d) and circumference (C)

Step by step explanation:

In order to determine the ratio we must know the formula for the circumference of a circle. Then relate it to the diameter.

But since we have been the value if both circumference and diameter, we would just calculate the ratio.

Circumference of a circle = 2πr

Where d = diameter = 2r

Circumference = πd

a) d = 20 in.

C = 62.83 in.

Ratio of Diameter (d) and circumference (C) = d:C

= 20/(62.83)

d:C = 0.32

b) d=10 in.

C =31.41 in.

d:C = 10/(31.41)

d:C = 0.32

c) d =6 in.

C =18.84 in.

d:C = 6/(18.84)

d:C = 0.32

d) d= 2 in.

C = 6.28 in.

d:C = 2/6.28

d:C = 0.32

e) d = 1 in.

C = 3.14 in.

d:C = 1/3.14

d:C = 0.32

The above answers indicate that the ratio of a circumference of a circle to its diameter = d/C = d/(π×d)

= 1/π = 0.32

Answer:

[tex]z=\frac{0.614 -0.64}{\sqrt{\frac{0.64(1-0.64)}{145}}}=-0.652[/tex]  

The p value would be given by:

[tex]p_v =P(z<-0.654)=0.257[/tex]  

Since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true proportion is significantly less than 0.64 at 5% of significance

Step-by-step explanation:

Information given

n=145 represent the random sample taken

X=89 represent the number  of people who believed the supermarket brand was as good as the national brand

[tex]\hat p=\frac{89}{145}=0.614[/tex] estimated proportion of people who believed the supermarket brand was as good as the national brand

[tex]p_o=0.64[/tex] is the value to test

[tex]\alpha=0.05[/tex] represent the significance level

z would represent the statistic

[tex]p_v[/tex] represent the p value

Hypothesis to test

We want to test if the true proportion is less than 0.64, the system of hypothesis are.:  

Null hypothesis:[tex]p \geq 0.64[/tex]  

Alternative hypothesis:[tex]p < 0.64[/tex]  

The statistic is given by:

[tex]z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}[/tex] (1)  

Replacing the info we got:

[tex]z=\frac{0.614 -0.64}{\sqrt{\frac{0.64(1-0.64)}{145}}}=-0.652[/tex]  

The p value would be given by:

[tex]p_v =P(z<-0.654)=0.257[/tex]  

Since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true proportion is significantly less than 0.64 at 5% of significance

Answer:

There is not enough evidence to support the claim that your team scored an average significantly less than 110 points.

Step-by-step explanation:

The question is incomplete:

There is no data from the sample.

We will use the sample [105 107 117 106 110 ] as an example to solve the question.

The mean of the sample is:

[tex]M=\dfrac{1}{5}\sum_{i=1}^{5}(105+107+117+106+110)\\\\\\ M=\dfrac{545}{5}=109[/tex]

The standard deviation of the sample is:

[tex]s=\sqrt{\dfrac{1}{(n-1)}\sum_{i=1}^{5}(x_i-M)^2}\\\\\\s=\sqrt{\dfrac{1}{4}\cdot [(105-(109))^2+(107-(109))^2+(117-(109))^2+(106-(109))^2+(110-(109))^2]}\\\\\\ s=\sqrt{\dfrac{1}{4}\cdot [(16)+(4)+(64)+(9)+(1)]}\\\\\\ s=\sqrt{\dfrac{94}{4}}=\sqrt{23.5}\\\\\\s=4.848[/tex]

This is a hypothesis test for the population mean.

The claim is that your team scored an average significantly less than 110 points.

Then, the null and alternative hypothesis are:

[tex]H_0: \mu=110\\\\H_a:\mu< 110[/tex]

The significance level is 0.01.

The sample has a size n=5.

The sample mean is M=109.

As the standard deviation of the population is not known, we estimate it with the sample standard deviation, that has a value of s=4.848.

The estimated standard error of the mean is computed using the formula:

[tex]s_M=\dfrac{s}{\sqrt{n}}=\dfrac{4.848}{\sqrt{5}}=2.17[/tex]

Then, we can calculate the t-statistic as:

[tex]t=\dfrac{M-\mu}{s/\sqrt{n}}=\dfrac{109-110}{2.17}=\dfrac{-1}{2.17}=-0.46[/tex]

The degrees of freedom for this sample size are:

[tex]df=n-1=5-1=4[/tex]

This test is a left-tailed test, with 4 degrees of freedom and t=-0.46, so the P-value for this test is calculated as (using a t-table):

[tex]\text{P-value}=P(t<-0.46)=0.334[/tex]

As the P-value (0.334) is bigger than the significance level (0.01), the effect is  not significant.

The null hypothesis failed to be rejected.

There is not enough evidence to support the claim that your team scored an average significantly less than 110 points.

Answer:

A point would be used as the undefined term

Answer:

I would recommend optimum number of six segments for each arc.

Step-by-step explanation:

The optimum number of segments I would recommend for each arc is six. This way, the circle interpolation will divide the arc into six segments, and approximating each segment by a straight line.

Answer:

A. The data are continuous because the data can take on any value in an interval.

Step-by-step explanation:

The data surveyed is the exact mass, in grams, of food eaten by each person each day.

This type of data is continous, not discrete. The mass can take any value within the domain of positive real numbers. It represents a physic variable, and they are always continous.

Answer:

a) A. The relevant variable is the population mean work week (in hours) for workers aged 18-25.

b) Null hypothesis:[tex]\mu \leq 40[/tex]  

Alternative hypothesis:[tex]\mu > 40[/tex]  

c) [tex]t=\frac{45.6-40}{\frac{14.6}{\sqrt{893}}}=11.46[/tex]    

The p value for this case would be:

[tex] p_v = P(t_{110} >11.46) \approx =0[/tex]

d) Since the p value is a very low value we have enough evidence to reject the null hypothesis and we can conclude that the true mean for this case exceeds 40 hours.

Step-by-step explanation:

Information provided

[tex]\bar X=45.6[/tex] represent the sample mean

[tex]s=14.6[/tex] represent the sample standard deviation

[tex]n=893[/tex] sample size  

[tex]\mu_o =40[/tex] represent the value to verify

t would represent the statistic  

[tex]p_v[/tex] represent the p value

a. Identify the relevant and parameter variable. Choose the correct relevant variable below.

A. The relevant variable is the population mean work week (in hours) for workers aged 18-25.

b. State the null and alternative hypotheses. State the null hypothesis.

We want to verify if the population mean is higher than 40, the system of hypothesis would be:  

Null hypothesis:[tex]\mu \leq 40[/tex]  

Alternative hypothesis:[tex]\mu > 40[/tex]  

c. Calculate the statistic

[tex]t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}[/tex]  (1)  

Replacing the info given we got:

[tex]t=\frac{45.6-40}{\frac{14.6}{\sqrt{893}}}=11.46[/tex]    

The p value for this case would be:

[tex] p_v = P(t_{110} >11.46) \approx =0[/tex]

d. Conclusion

Since the p value is a very low value we have enough evidence to reject the null hypothesis and we can conclude that the true mean for this case exceeds 40 hours.

Answer:

Hai

It should be the fourth option. 44/20<45/20

Because firstly we should bring them same to make calculation.

im bringing them denominator to 20.

for 11/5, i should multiply both with 4.

11×4 = 44/20 = 5 × 4

for 9/4 ill multiply both with 5.

9×5 = 45/20 = 5 × 4

good luck(:

Answer:

1.75x ≤ 25

Step-by-step explanation:

Answer:

P(a)= Your desired outcome / The number of real outcomes.

Step-by-step explanation:

Ex. Probability model for rolling a 1 on a 6 sided die -  

1 (desired outcome) / 6 (Number of real outcomes)

Let me know if you need more help!

Answer:

(16)^-1 or (4)^-2

Step-by-step explanation:

(-1/4)^2, we can convert this to (1/16), which is (16)^-1 or (4)^-2.

Answer:

[tex]\frac{1}{16}[/tex]

Step-by-step explanation:

[tex]-\frac{1}{4} ^{2}[/tex]

[tex]\frac{-1^{2} }{4^{2} }[/tex]

[tex]=\frac{1}{16}[/tex]