Answer:
-0.25, -1/5, -2.5, -5, -10
Step-by-step explanation:
“which sport do you prefer soccer or basketball is”that biased or unbiased question
Answer: both
Step-by-step explanation:
Pls help me if u can
This is a statistics problem involving Group Frequency Distribution Table. See the attached and the details below.
What is a Group Frequency Distribution Table?By dividing observations into intervals and tabulating the frequencies for each interval, data can be organized. A grouped frequency table is the end product.
The intervals in this distribution are referred to as classes.
What is the Estimated Mean of the Grouped Frequencies?This is obtained by dividing the sum of the product of all mid points and their frequencies by the total number of observations.
That is Estimated Mean = (f * x)/n ------See the attached sheet.
⇒ 503/50
= 10.06
What is the Estimated Median of the Grouped Frequencies?The median of the 50 observations = 28
This is arrived at by dividing the sum of 25th and the 26th number by 2.
That is (28 + 28)/28=28
This median falls in to the third class - 25-29. Hence, the median group is 25-29.
The estimated median value is computed as follows:
Estimated Median = L + (((n/2)-B)/G) x w
Where :
L is the lower class boundary of the group containing the mediann is the total number of valuesB is the cumulative frequency of the groups before the median groupG is the frequency of the median groupw is the group widthInserting the values we have :
L = 25
n = 50
B = 0 + 1 = 1
G = 2
w = 5
Estimated Median = 25 + (((50/2)-1)/2 ) * 5
= 25 + (24/2) * 5
= 85
How do you calculate the Estimated Mode?By observation, the modal group is 30-34. This is because it has the highest frequency of 4.
Hence, the Estimated Mode (EM) is arrived at using the formula:
EM = L + (fₙ-fₙ₋₁)/(fₙ-fₙ₋₁) + (fₙ-fₙ₊₁) x w
where:
L is the lower class boundary of the modal groupfn-1 is the frequency of the group before the modal groupfn is the frequency of the modal groupfn+1 is the frequency of the group after the modal groupw is the group widthNote that
L = 30
fn-1 = 2
fn = 4
fn+1 = 3
w = 5
Hence,
EM = 30 + (4-2)/((4-2) + (4-3)) x 5
= 30 + (2/(2+1)) x 5
= 30 + (2/3) x 5
EM = 33.33
In summary,
Estimated Mean: 10.06Estimated Median: 85Estimated Mode: 33.33Learn more about Group Frequency Distribution at:
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Sam receives a shipment of 36 football helmets. Of the 36 football helmets in the shipment, four of them were scratched and need to be returned. If another shipment of 108 helmets arrive, then how many are likely to be scratched
The number of football helmets which are likely to be scratched from the 108 helmets is; 12.
What is the number of helmets likely to be scratched?It follows from the task content that of the initial shipment of 108 football helmets; four of them were scratched.
On this note, the number of helmets likely to be scratched from the new shipment of 108 helmets can be evaluated by ratios as;
x = (108 × 4)/36 = 12 scratched helmets.
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If 45%of a number, n, is 225, what is 74% of n?
Answer:
if 45% of a number ,n, is 225, then 74% of a number ,n,is 370
A scientist studies a sample that weighs 1 ounce, which is about 28 grams. About how many grams would be in a 48-ounce sample?
Answer: 1344g
Step-by-step explanation:
if 1 ounce = 28 grams and we have 48 ounces,
multiply 48 by 28 to find the amount of grams
48×28 = 1344g
If you roll two fair six-sided dice, what is the probability that the sum is 9 or higher?
Pls answer!!!
Answer:
4/11
Step-by-step explanation:
The chance of getting the sum of any number(2 thought 12) is 1/11
so
9 = 1/11
10 = 1/11
11 = 1/11
12 = 1/11
so, 4/11
Find the median of grouped data
HELP
Answer:
6
Step-by-step explanation:
Median = (n+1) ÷ 2
Median = total frequency which is 55 + 1 = 56 ÷ 2 = 28th term.
So to find this term you add the frequencies until you get 28 or a number higher than 28.
3+1+10+15 = 29.
We got 29 when we got to the column of shoe size 6. So the Median is in shoe size 6.
Eight less than four times a number is twelve. What is the number?
5
1
-3
-5
An ellipse centered at the origin has a vertical major axis of 12 units and an eccentricity of 0.5.
What is the equation of the ellipse?
The equation of the ellipse formed is x²/11.7² + y²/12² = 1
Equation of an ellipseThe formula for calculating the equation of an ellipse is expressed as;
x²/a² + y²/b² = 1
where
a and b are the minor an major axis respectively;
Given the following
b = 12
e = 0.5
Determine the value of a
e² = √b²-a²/b
0.5² = √12²-a²/12
12 * 0.25 = √144-a²
9 = 144 - a²
a² = 136
a = 11.7
Substitute into the fomula
x²/11.7² + y²/12² = 1
Hence the equation of the ellipse formed is x²/11.7² + y²/12² = 1
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A display case of DVDs are marked 19 for $10. If Larry has $50, how many DVDs can Larry get? (Assume no tax or other fees.)
Answer:
95
Step-by-step explanation:
19 DVDs for 10 dollars and he has 50 dollars well 50 dollars is just 5 groups of 10 so just 19 x 5 = 95
HELP ME WITH THIS PLEASE HUURRYY
Answer:
the answer would be A, 78.52
Step-by-step explanation:
If a 3 ft tall cardboard box casts a 6 ft long
shadow, then how tall is a tent that casts a
18 ft shadow?
Answer:
9 ft tall.
Step-by-step explanation:
The box that is 3 feet tall casts a 6 foot shadow, which is double the height. If we use inverse operations because we start with the shadow we will get 9 feet because 18 divided by 2 is nine.
Three quarters the product of two numbers x and y
The Three quarters the product of two numbers x and y is 3/4 *x* y
What is algebra?Algebra is a branch of mathematics dealing with symbols and the rules for manipulating those symbols.
In elementary algebra, those symbols represent quantities without fixed values, known as variables.
As, quarters represent 1/4
So, three quarters= 3/4
Let the two number be x and y.
Then , 3 quarters of x and y product be,
=3/4*x*y
= 0.75*x*y
Hence, the expression of given statement is 3/4*x*y.
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Find the surface area of a square pyramid with side length 6 cm and slant height 5
cm.
The surface area of the square pyramid is 96 sq. mi.
Given:
side length (s) = 6 mi
slant height (l) = 5 mi
*image of a typical square pyramid is shown in the attachment below.
Recall:
Formula for surface area of square pyramid (SA) = [tex]A+\frac{1}{2}Pl[/tex]
Where,
[tex]A=[/tex] area of the base = [tex]s^2=6^2=36[/tex] sq mi
[tex]P=[/tex] perimeter of the base = [tex]4(s)=4*6=24[/tex] mi
[tex]l=[/tex] slant height = 5 mi
Plug in the values
[tex]SA=36+\frac{1}{2} *24*5[/tex]
[tex]SA=36+60[/tex]
[tex]SA=96[/tex]
The surface area(SA) of the square pyramid is 96 sq. mi
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Fill in the table using this function rule.
-
y=-6x-2
Answer:
(x,y)
(-5,28)
(-1,4)
(0,-2)
(1,-8)
Step-by-step explanation:
You just have to plug in the values of x into the function rule to get all the values. Hope this helps!
A bags 4 red marbles, 5 green and 9 blue. What is the probability of picking a red marble?
2/9
1/18
1/4
2/18
Answer:
1/4
Step-by-step explanation:
(I think ) sorry it it's wrong
ASAP ASAP ASAP PLS ANSWER
area triangle:
(1.7m×2m)×2
= 1.7m²
-> 2 triangles so: 1.7m²×2= 3.4m²
area rectangles(walls):
2m×3m
= 6m²
-> 2 walls so: 6m²×2=12m²
area bottom rectangle:
3m×2m=6m²
-> total area:
6m²+12m²+3.4m²= 21.4m²
Please help!! 50 points!!
Use the exponential equation below to answer Part A, Part B, and Part C.
35^x = 8
Part A: Explain the steps to solve the equation.
Part B: Rewrite the exponential equation in logarithmic form using the definition of logarithms.
Part C: Use the equation from Part B to solve for x. Round to the nearest hundredth
Answer:
a) below
b) log_35 (8) = x
c) x = 0.58487
Step-by-step explanation:
a) 35^x=8
apply the exponent rule
xln(35) = ln(8) → x = ln(8)/ln(35) → x = 3ln(2)/ln(35)
x = 0.58487
c) log_35 (8) = x
x = log_35 (8)
base form (Rewrite 8 in power)
x = log_35 (2^3)
log rule: log_a(x^b) = b*log_a(x)
log_35 (2^3) = 3log_35(2)
x = 3log_35(2)
x = 0.58487
2. Anita and Basia are selling packs of candy for a school fundraiser. Anita has six more
a
packs than Basia. If Basia has eight packs, write an expression using an operation to
represent how many packs of candy Anita has.
I need help
Answer:
a = b + 6
b = 8
Step-by-step explanation:
a = b + 6
b = 8
What is the domain of the function y= 1/x +4?
+?
Answer:
x i think its the awnser
Step-by-step explanation:
Set the denominator in 1x−4 1 x - 4 equal to 0 to find where the expression is undefined. Add 4 to both sides of the equation. The domain is all values of x that make the expression defined.
The table shows when the tickets for a concert are sold and the types of tickets that are sold. What is the probability that a randomly selected person attending the concert is an adult or has purchased the ticket in advance?
Hint- Use the addition rule
A) 148/250
B) 100/250
C) 140/250
D) 188/250
Please help I keep getting it wrong, I’ve tried A and B.
Answer:
D. 188/250
Step-by-step explanation:
Total number attending concert is 250
Total number of adults AND tickets purchased in advance:
48 + 100 + 40 = 188
Divide by 250:
[tex]\frac{188}{250}[/tex]
The probability that the randomly selected person attending the concert is an adult or has purchased the ticket in advance is 188/250.
What is Probability?Probability is simply the possibility of getting an event. Or in other words, we are predicting the chance of getting an event.
The value of probability will be always in the range from 0 to 1.
Given a table which shows when the tickets for a concert are sold and the types of tickets that are sold.
The probability of A or B can be calculated as,
P(A or B) = P(A) + P(B) - P(A and B)
Let A denote the people is an adult.
Let B denote the people who has purchased the ticket in advance.
P(A) = 148/250
P(B) = 140/250
P(A and B) = 100/250
Probability that a randomly selected person attending the concert is an adult or has purchased the ticket in advance is,
P(A or B) = 148/250 + 140/250 - 100/250
= 288/250 - 100/250
= 188/250
Hence the required probability is 188/250.
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Hello! i need help with this really bad
What is the solution of the equation 6+q=25 1/2
Answer:
q = 19 1/2.Step-by-step explanation:
Unknown value is q.
Solve for the unknown value:
6 + q = 25 1/2q = 25 1/2 - 625 1/2 - 6= 19 1/2.q = 19 1/2.Answer is q = 19 1/2.Answer:
[tex]q=19\frac{1}{2}[/tex]
Step-by-step explanation:
Step 1: Subtract 6 from both sides
[tex]6 + q = 25\frac{1}{2}[/tex]
[tex]6 -6 + q = 25\frac{1}{2}-6[/tex]
[tex]q = (25-6)\frac{1}{2}[/tex]
[tex]q=19\frac{1}{2}[/tex]
Answer: [tex]q=19\frac{1}{2}[/tex]
Hope this helps! Let me know if you have any questions
Which number sentence is true? OA -6.8 (-1.3)=8.84 OB 6.8 (-1.3)=8.84 OQ-68.1.3=8.84 OD 6.8 1.3=-8.84
The true number sentence is the third option:
6.8*1.3 = 8.84
Which number sentence is true?
Here we have number sentences of the form:
A*B = C
This is true only when the value of the product A*B is equal to the value of C.
One key thing to identify the correct one is remembering the rule of signs:
(+)*(-) = (-)
(+)*(+) = (+)
(-)*(+) = (-)
(-)*(-) = (+).
The only option that meets that rule is:
6.8*1.3 = 8.84
Where the product of two positive numbers gives another positive number (and the equality is true) so we conclude that this number sentence is true.
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There are 4 consecutive even integers that sum to 68. What are the integers?
Hi there,
Let x be the first number.Then the next three even numbers are x+2, x+4, and x+6.The sum of these numbers is 68So,
x + (x + 2) + (x + 4) + (x + 6) = 68Simplify and solve for x.
4x + 12 = 684x = 68 - 12x = 56/4x = 14In the context of this problem, the equation x=14 means that the first number is 14. The next three even numbers are 16, 18, and 20.
Checking we see that 14+16+18+20=68.
What are consecutive integers?Consecutive integers are integers that follow each other in order.Tripp decided to go on vacation to the beach. After driving 60% of the way, he decided to stop for lunch. If he stopped for lunch after 240 miles of driving, how many total miles will he have to drive?
Answer:
40=10% im rightthe total is 400
Step-by-step explanation:
Please Help me answer all 4 questions with a full explanation so I can solve the rest on my own.
[tex]\\ \rm\Rrightarrow (2x^2)^3.2yx^0=8x^6.2y=16x^6y[/tex]
[tex]\\ \rm\Rrightarrow (2x^4y^3)^3.2x^4y^4=8x^{12}y^6.2x^4y^4=16x^{16}y^{10}[/tex]
[tex]\\ \rm\Rrightarrow (m^3n^0(2m^3n^2)^4)^2=(m^316m^{12}n^8)^2=(16m^{15}n^8)^2=256m^{30}n^{16}[/tex]
[tex]\\ \rm\Rrightarrow (2xy^3)^2.2x^2y^0=4x^2y^6.2x^2=8x^4y^6[/tex]
Your friend says that the quotient 3/8 divided by 1/8 is 1/3 what is the correct quotient? What mistake did you friend likely make?
Answer:
its 1/8
Step-by-step explanation:
he said 1/3 it does not match the other 2 numbers hope its right ;-; also helpfull
A pyramid-shaped hip roof is a good choice for a house in an area with many hurricanes. What is the volume of the roof to the nearest tenth of a foot? What is the volume of the entire house, including the roof?
The volume of the roof is 10667 cube feet and the volume of the entire house, including the roof, is 58667 cube feet.
How to find the volume of the composite figures?To find the volume of the composite figures, follow the steps listed below:,
Separate the figure.Calculate the volume of each figure by which the composite figure is made of.Add the volume of all the individual figures to get the total volume of composite figures.A pyramid-shaped hip roof is a good choice for a house in an area with many hurricanes. The volume of the roof is:
[tex]V=\dfrac{1}{3}(\text{length x width x height})\\V=\dfrac{1}{3}40\times40\times20\\V\approx10667\rm\; ft^3[/tex]
The volume of the room is:
V=length x width x height
V=40 x 40 x 30
V=48000 ft³
The volume of the entire house, including the roof, is,
V=10667+48000
V=58667 ft³
Thus, the volume of the roof is 10667 cube feet and the volume of the entire house, including the roof, is 58667 cube feet.
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suppose the mean height for men is 70 inches with a standard deviation of 2 inches. What percentage of men are less than 74 inches tall?
Answer:
97.7 %
Step-by-step explanation:
TWO standard deviations above the mean
z - score = 2 corresponds to .9772 97.7 %