Find the value of the missing number

Answer:

1. 3

2. $3.30

3. $3.28

Step-by-step explanation:

sorry if this is wrong i learned this two years ago lol

Answer:

m=1

Step-by-step explanation:

-2=7-9m so -9=-9m so m=1

Answer: 0.16

Step-by-step explanation:

Let X be a random variable that represents the heights of women at a large university are approximately bell-shaped, with a mean of 66 inches and standard deviation of 3 inches.

According to the Empirical Rule, for bell-shaped distributions, about 68% of the values fall within 1 standard deviation of the mean.

About 68% woman have height between ( 66-3) inches and (66+3) inches.

i.e. About 68% woman have height between 63 inches and 69 inches.

The percentage of woman have height either less than 69 inches or greater than 69 inches =100% - 68%= 32% [both share equal area on curve.]

The percentage of woman have height  is 69 inches or taller = 32%÷2

= 16%

Hence, the probability that a randomly selected woman from this university is 69 inches or taller =16%=0.16

Answer:

b. Interval estimation

Step-by-step explanation:

There are two types of estimations for each population parameter; the point estimation and confidence interval (CI) estimation.

The point estimation involves the use of sample data to calculate a single value which serve as a best estimate of an unknown population parameter.

The interval estimation is the use of sample data to calculate range of possible values of an unknown population parameter.

Therefore, the correct option is "b"

b. Interval estimation

The only thing we can say about the line is that x = 12 is a vertical line.

Remember that the general linear equation is:

a*x + b*y = c

Particularly, if we take b = 0, the dependence on y disappears, and then we get a vertical line.

This is just a vertical line that crosses the x-axis at x = 12. (and never crosses the y-axis).

So the only correct option is the first one.

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Answer:

1. Vertical Line

Step-by-step explanation:

Complete Question

The complete question is shown on the first uploaded image

Answer:

The value is [tex]n = 146093[/tex]

Step-by-step explanation:

From the question we are told that

    The margin of error is  [tex]E = 0.04[/tex]

   The data is  

      8.70      4.79    10.95   15.19    14.06

      16.99     1.22    9.02    14.39     5.73

      7.28     3.22     2.66    6.13       6.93

Generally the sample mean is mathematically represented as

    [tex]\= x = \frac{\sum x_i}{n}[/tex]

=>  [tex]\= x = \frac{ 8.70 + 4.79 +\cdots + 6.93}{15}[/tex]

=>  [tex]\= x = 8.48[/tex]

Generally the standard deviation is mathematically represented as  

       [tex]\sigma = \sqrt{ \frac{ \sum (x_i - \= x)}{n} }[/tex]

=>     [tex]\sigma = \sqrt{ \frac{ (8.70 - 8.48 )^2 + ( 8.70 - 8.48)^2 + \cdots + (6.93 - 8.48)^2 }{15} }[/tex]

=>     [tex]\sigma = 5.14[/tex]

From the question we are told the confidence level is  98% , hence the level of significance is    

      [tex]\alpha = (100 - 98 ) \%[/tex]

=>   [tex]\alpha = 0.02[/tex]

Generally the degree of freedom is mathematically represented as

      [tex]df = n -1[/tex]

=>   [tex]df = 15 -1[/tex]  

=>   [tex]df = 14[/tex]  

Generally from the t distribution table the critical value  of   at a degree of freedom of   is  

   [tex]t_{\frac{\alpha }{2} ,  14 } = 2.9768 [/tex]

Generally the sample size is mathematically represented as

      [tex]n =[ \frac{t_{\frac{\alpha }{2} , 14 } * \sigma }{E} ]^2[/tex]

=>    [tex]n =[ \frac{ 2.9768 * 5.136 }{0.04} ]^2[/tex]

=>    [tex]n = 146093[/tex]

Answer:

Answer is below:

Step-by-step explanation:

A rate is a ratio that compares two different quantities that have different units of measure. A rate is a comparison that provides information such as dollars per hour, feet per second, miles per hour, and dollars per quart, for example. The word “per” usually indicates you are dealing with a rate.

I hope this helps!

The ratio between the two given quantities is 3:1

What is proportion ?

A proportion is an equation based on the equality of two ratios.

It is to find the ratio of two quantities given as :

5 days to 60 hours

It is to be noted that two quantities can only compared when there units are same therefore first let us make the units same :

we known that :

1 day = 24 hours

that is, 5 days = 5x24 = 120 hours

Now, we can find the ratio :

5 days : 60 hours

120 hours : 60 hours

3 : 1

Therefore, the ratio between the two given quantities is 3:1

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Answer:

60 boxes

Step-by-step explanation:

Kyle + (Kyle x 2)

20 + (20 x 2)

20 + 40

60

Answer:

dived by 2

Step-by-step explanation:

it showed give your anserw if not im sorry

The length of each side of the square is, 6 centimeter.

A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.

We have to given that;

The area of a square is 36 square centimeters.

Now, We know that;

⇒ Area of square = Side²

Let the side of square = x

Hence, We can formulate;

⇒ x² = 36

⇒ x = √ 36

⇒ x = 6 centimeters

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Answer:

3/n+6/

Step-by-step explanation:

Answer:

c = 33°, b = 147°

Step-by-step explanation:

You can just find that c + 147° makes a straight line (which is 180°) so c = 180° - 147°. You can do the same thing for b.

Answer:

(x-3)^2+(y+1)^2=16

Step-by-step explanation:

ed.

The equation of the circle is:

[tex](x - 3)^2 + (y + 1)^2 = 16[/tex]

The equation of a circle with center (h, k) and radius r is given by[tex](x - h)^2 + (y - k)^2 = r^2[/tex], which is a second-order polynomial equation in a single variable. It has at least one solution because it is a second-order polynomial equation, which is guaranteed by the algebraic fundamental theorem. The answer could be simple or complicated.

To complete the equation representing all the points that are 4 units away from the point (3, -1), we need to first recall the equation of a circle, which is:

[tex](x - h)^2 + (y - k)^2 = r^2[/tex]

where (h, k) is the center of the circle and r is the radius.

In this case, the center of the circle is given as (3, -1) and the radius is 4 units since all the points on the circle are 4 units away from the center.

Substituting these values into the equation of a circle, we get:

[tex](x - 3)^2 + (y + 1)^2 = 16[/tex]

This equation represents all the points that are 4 units away from the point (3, -1) and forms a circle with center (3, -1) and radius 4 units.

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Answer: 56.70

Step-by-step explanation: Hope this helps

Answer:

14

Step-by-step explanation:

divide them by 7966 and 569

Answer:

1%

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:don’t understand number 5??

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer: D

Step-by-step explanation:

Answer:

m= -0.25

Step-by-step explanation:

step1: identify any two points passing through the line.

(2,6)  x1=2  y1=6

(6,5)  x2=6  y2=5

step2: sub the values into the slope formula.

[tex]m=\frac{y2-y1}{x2-x1}[/tex] (slope formula)

[tex]=\frac{5-6}{6-2}[/tex]

step3: simplify the fraction and solve for m.

[tex]=\frac{-1}{4}[/tex]

step4: convert the answer into decimals.

=-0.25

Complete Question

Find the range for the population mean value with 95% and 65% confidence intervals for each set of data.

 [tex]\= x_1= 3.611 \ cm[/tex], [tex]\sigma_1=0.02\ c m[/tex], [tex]n_1=24[/tex],

[tex]\=x_2=3.632 \ cm[/tex], [tex]\sigma_2=0.06 \ cm[/tex], [tex]n_2= 17[/tex]

Answer:

The range for the population mean value with 95% confidence intervals for the first set of data  is

    [tex]2.602 <\mu <  2.619[/tex]

The range for the population mean value with 95% confidence intervals for the second  set of data  is

    [tex]2.601 <\mu <  2.661[/tex]

The range for the population mean value with 65% confidence intervals for the first   set of data  is

    [tex]2.605 <\mu<  2.617[/tex]  

The range for the population mean value with 65% confidence intervals for the second set of data  is

    [tex]2.611 <\mu <  2.6526[/tex]  

Step-by-step explanation:

Generally the range for the population mean value with 95% confidence intervals for the first set of data  is mathematically evaluated as follows

Generally the degree of freedom is mathematically evaluated as

     [tex]df = n_1 -1[/tex]

=>  [tex]df = 24 -1[/tex]

=>  [tex]df = 23[/tex]

From the question we are told the confidence level is  95% , hence the level of significance is    

      [tex]\alpha = (100 - 95 ) \%[/tex]

=>   [tex]\alpha = 0.05[/tex]

Generally from the t distribution table the critical value  of    at  is  

   [tex]t_{\frac{\alpha }{2}  , df = 23} =  2.068[/tex]

Generally the margin of error is mathematically represented as  

      [tex]E_1 = t_{\frac{\alpha }{2}  , df = 23}  *  \frac{\sigma_1 }{\sqrt{n_1} }[/tex]

=>   [tex]E_1 = 2.068  *  \frac{0.02}{\sqrt{24} }[/tex]  

=>   [tex]E_1 =  0.00844 [/tex]

Generally 95% confidence interval is mathematically represented as  

      [tex]\= x_1 -E_1 <  \mu <  \=x_1  +E_1[/tex]

       [tex]2.611  - 0.00844 < \mu < 2.611  + 0.00844[/tex]

=>   [tex]2.602 <\mu <  2.619[/tex]

Generally the range for the population mean value with 95% confidence intervals for the second set of data  is mathematically evaluated as follows

Generally the degree of freedom is mathematically evaluated as

     [tex]df_2 = n_2 -1[/tex]

=>  [tex]df_2 = 17 -1[/tex]

=>  [tex]df_2 = 16[/tex]

From the question we are told the confidence level is  95% , hence the level of significance is    

      [tex]\alpha = (100 - 95 ) \%[/tex]

=>   [tex]\alpha = 0.05[/tex]

Generally from the t distribution table the critical value  of    at  is  

   [tex]t_{\frac{\alpha }{2}  , df = 16} =  2.12 [/tex]

Generally the margin of error is mathematically represented as  

      [tex]E_1 = t_{\frac{\alpha }{2}  , df = 23}  *  \frac{\sigma_2 }{\sqrt{n_2} }[/tex]

=>   [tex]E_2 =2.12  *  \frac{0.06}{\sqrt{17} }[/tex]  

=>   [tex]E_2 =  0.03085  [/tex]

Generally 95% confidence interval is mathematically represented as  

      [tex]\= x_2 -E_2 <  \mu <  \=x_2  +E_2[/tex]

       [tex]2.632  - 0.03085<\mu < 2.632  + 0.03085[/tex]

=>   [tex]2.601 <\mu <  2.661[/tex]

Generally the range for the population mean value with 65% confidence intervals for the first set of data  is mathematically evaluated as follows

Generally the degree of freedom is mathematically evaluated as

     [tex]df = n_1 -1[/tex]

=>  [tex]df = 24 -1[/tex]

=>  [tex]df = 23[/tex]

From the question we are told the confidence level is  95% , hence the level of significance is    

      [tex]\alpha = (100 - 65 ) \%[/tex]

=>   [tex]\alpha = 0.35[/tex]

Generally from the t distribution table the critical value  of    at  is  

   [tex]t_{\frac{\alpha }{2}  , df = 23} = 1.3995 [/tex]

Generally the margin of error is mathematically represented as  

      [tex]E_3 = t_{\frac{\alpha }{2}  , df = 23}  *  \frac{\sigma_1 }{\sqrt{n_1} }[/tex]

=>   [tex]E_3 = 1.3995 *  \frac{0.02}{\sqrt{24} }[/tex]  

=>   [tex]E_3 =  0.00571 [/tex]

Generally 95% confidence interval is mathematically represented as  

      [tex]\= x_1 -E_3 <  \mu <  \=x_1  +E_3 [/tex]

       [tex]2.611  - 0.00571 <\mu <  2.611  + 0.00571[/tex]

=>   [tex]2.605 <\mu<  2.617[/tex]  

Generally the range for the population mean value with 65% confidence intervals for the second set of data  is mathematically evaluated as follows

Generally the degree of freedom is mathematically evaluated as

     [tex]df_2 = n_2 -1[/tex]

=>  [tex]df_2 = 17 -1[/tex]

=>  [tex]df_2 = 16[/tex]

From the question we are told the confidence level is  95% , hence the level of significance is    

      [tex]\alpha = (100 - 65 ) \%[/tex]

=>   [tex]\alpha = 0.35[/tex]

Generally from the t distribution table the critical value  of    at  is  

   [tex]t_{\frac{\alpha }{2}  , df = 16} =  1.41930 [/tex]

Generally the margin of error is mathematically represented as  

      [tex]E_4 = t_{\frac{\alpha }{2}  , df = 23}  *  \frac{\sigma_2 }{\sqrt{n_2} }[/tex]

=>   [tex]E_4 =1.41930 *  \frac{0.06}{\sqrt{17} }[/tex]  

=>   [tex]E_4 =  0.020653  [/tex]

Generally 95% confidence interval is mathematically represented as  

      [tex]\= x_2 -E_4 <  \mu <  \=x_2  +E_4[/tex]

       [tex]2.632  - 0.020653<\mu < 2.632  + 0.020653[/tex]

=>   [tex]2.611 <\mu <  2.6526[/tex]  

Answer:

is there more to the question?

Step-by-step explanation:

❤️

Answer:

I assume you mean 10 to the power of 7, the answer is 53010000

Answer:

P(X≤5) = 0.5105 (Approx)

Step-by-step explanation:

Assume, x = completion time of given task

Mean u = 7

So,

λ = 1/u = 1/7

So,

x ↔ exp(λ)

f(x) = P(X≤x) = [tex]1-e^{-\frac{1}{u}x }[/tex]

P(X≤5) = [tex]1-e^{-\frac{1}{7}5 }[/tex]

P(X≤5) = 0.5105 (Approx)

Answer:

A

Step-by-step explanation:

The actual distance is 47.84 so your best answer is A. If its wrong please tell me!

Answer:

Third choice 7(x + 2) - 3x = 2/3(6x + 3)

Step-by-step explanation:

Choice answer 1 has infinitely many solutions since -1/2(8x + 6) - 2x = -3(2x + 1) → -6x - 3 = -6x - 3 = 0 → 0 = 0 [is always equal to].

Choice answer 2 has one solution since

-1/2(8x + 6) - 2x = -3(2x + 1) → -2x - 8 = 2x - 8 → x = 0 [is equal to in 1 condition].

Choice answer 3 has no solution since

7(x + 2) - 3x = 2/3(6x + 3) → 4x + 14 = 4x + 2 → 0 = -12 [is never equal to].

Choice answer 4 has infinitely many solutions since -2x + 5 - 3x + 12 = -5(x - 3) + 2 → -5x + 17 = -5x + 17 → 0 = 0 [is always equal to].