Answer:
Step-by-step explanation:
a random sample of 21 students from the U and at A&T were surveyed about their music listening habits. Their responses (in hours, each square represents 0.5 hour) were recorded and displayed using the following histograms. The left represents U. The right represents SHSAT. Which data set(U or SHSAT students) has a larger standard deviation? Explain.
Answer: U
Step-by-step explanation:
Looking at the graphs, U is skewed right and SHSAT is more of a normal distribution. Generally, this means the standard deviation would be greater for the data set that is skewed.
Let's find the standard deviation for each data set to confirm our theory.
Step 1) Find the mean number of hours
Step 2) Subtract each data value from the mean
Step 3) Find the mean of Step 2
U
hours x frequency: 1(3) + 2(5) + 3(4) + 4(3) + 5(3) + 6(2) + 9(1) = 72
Step 1: mean = (hours x frequency)/frequency = 72/21 = 3.4
Step 2: 2.4(3) + 1.4(5) + 0.4(4) + 0.6(3) + 1.6(3) + 2.6(2) + 5.6(1) = 33.2
Step 3: standard deviation = (sum from step 2)/ frequency = 33.2/21 = 1.58
SHSAT
hours x frequency: 1(1) + 2(3) + 3(4) + 4(5) + 5(3) + 6(3) + 7(2) = 86
Step 1: mean = (hours x frequency)/frequency = 86/21 = 4.1
Step 2: 3.1(1) + 2.1(3) + 1.1(4) + 0.1(5) +0.95(3) + 1.9(3) + 2.9(2) = 28.5
Step 3: standard deviation = (sum from step 2)/ frequency = 28.5/21 = 1.36
The calculations confirm that U has the greater standard deviation
A car traveled 63.4 miles in 72 minutes. At this rate, how far will it travel in 90 minutes?
find measure of angle a.
find measure of 1 interior angle in the regular polygon
find measure of angle
Answer:
150
Step-by-step explanation:
First a diagram which looks like a 12 sided figure where all the sides are equal.
Now draw 2 consecutive radii.
There are 12 such triangles in a 12 sided polygon.
These triangles have an apex angle of 360 / 12 = 30 degrees.
The other two angles making up the triangle are both equal. Therefore x + x + 30 = 180
2x = 150
x = 75
But 75 is 1/2 of the interior angle. There are 2 such angles making up the interior angle 75 + 75 = 150
Answer:
All the answers and work is in the attached screen shot.
Step-by-step explanation:
All the answers and work is in the attached screen shot.
Simple interest, I. in dollars is calculated using the formula 1 = prt. Here, p represents the principal, or amount, in dollars that is invested or borrowed; r represents the annual interest rate, expressed as a percent, and t represents time, in years. Find the value of the remaining variable in the simple interest formula. (Hint: Write percents as decimals.)
p = $200, r = 7%, t = 3 years
NEED THESE ANSWERS FAST
Answer:
1) m=2/9; y-intercept= 17/3
2) m=7 ; y-intercept= 22
3) m= -2/11 ; y-intercept= 100/11
4) m= 13/19 ; y-intercept= -53/13
Step by Step Explanation:
Use the slope formula to find the slope m.
Nautical flags are used to communicate on ships. Kimani uses the scale drawing at the right to sew a nautical z flag. The scale from her flag to the drawing is 20:1. Each color is one quarter of the flag. How many square inches of each color of fabric does Kimani need?
Answer:
30
Step-by-step explanation:
1.5 x 20 is 30
please help me! :(((
Answer:
your answer is c
Step-by-step explanation:
what grade is this
Which is the correct form for the quotient and remainder, written as partial fractions, of 3x^3-4x^2+5x-19/x^2+2x+3
it's C
Answer: it’s correct tyy
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Mr. Wagner is on a diet. He currently weighs 250 pounds. He loses 3 pounds per month. Write an equation that represents his weight after m months. After how many months will Mr. Wagner reach his goal of 220 pounds.
Answer:
y=mx+b
Step-by-step explanation:
In this case, x is represented by m. B is how much he weighs at the start which is 250. How many pounds does he lose per month ? 3. Thus, we conclude:
220=3x+250
Answer:
10 months
Step-by-step explanation:
220+3m = 250
Subtract 220 from both sides, now it is 3m=30. So now divide 3 on both sides. So now we have our answer m=10.
7
2) Classify the following number as rational or irrational. *
7.13
Answer:
the first one is 713/100
the second one is a reapeating decimal
Step-by-step explanation:
how could you rewrite 0.05 ×10 = 0.5 as a division equation?
Answer:
0.05 = 0.5/10
or
0.05 * 10 / 10 = 0.5/10
Step-by-step explanation:
What kind of angle is this?
Answer:
this is a straight line aka 180
Step-by-step explanation:
it is over 180 and it becomes flat
Answer
straight angle
Step-by-step explanation:
Kip walks 5/9 mile in 5/8 hour. What is kips rate of speed? How far can kip walk in one hour?
Step-by-step explanation:
5/8 hr = 5/9 mile
1 hr = 5/9 ÷ 5/8
= 8/9 mile
Speed = distance / time
= 5/9 mile / 5/8 hr
= 8/9 miles per hr?
A certain region of a country houses 1/178 of the total number of libraries in the country. If there are about 10680 libraries in the country, how many libraries are in this region?
Answer:
poop
Step-by-step explanation:
A family pays $6.00 to park at a baseball game. Tickets for the concert cost $7.50 per person. The family spent a total of $43.50 for parking fees and tickets to the baseball game. The situation can be modeled by the equation 43.50 = 7.50n + 6, where n represents the number of tickets purchased. How many tickets did the family purchase?
00:00
A baseball organization has 209 players. It wants to buy sweatshirts or jackets for players' warmups.
Price
Warm-up Type
Sweatshirt
$38
Jacket
$50
What is the difference in the total price of the sweatshirts and the jackets for all 209 players?
Enter your answer in the box
$
Answer: $2,958
Step-by-step explanation:
Total price of Sweatshirts
= 209 players * 38
= $7,942
Total price of Jacket
= 209 players * 50
= $10,450
Difference;
= 10,450 - 7,492
= $2,958
Answer:
2508
Step-by-step explanation:
show your work : 17-8n=-2(4n-7)-3
Answer:
i think so
Step-by-step explanation:
17‒8n=‒2(4n‒7)‒3
17‒8n=‒8n+14‒3(add ‒17 on both sides)
‒8n=‒8n+14‒3‒17
‒8n=‒8n‒6
‒8n+8n=‒6
0=‒6
so the equation doesn't have solution
Write a reason for each step
6.
3x-12=7x+8
GIVEN
-4X-12-8
-4x=20
X=-5
pls help!!! I will make you brainiest!!!!! What is the rate of change?
Answer:
?
Step-by-step explanation:
they are all multiplied by 6. I.e: 102/17 is 6
Two thirds a number x plus 6 is 9
Answer:
please mark brainliest!
Step-by-step explanation:
[tex]\frac{2}{3}x + 6 = 9[/tex]
2/3 of x is (2/3x)
6 added to that makes it (2/3 +6).
Saying this is 9 means it is equal to 9.
2/3x +6 = 9
Answer:
2/3x+6=9
Step-by-step explanation:
What is the range of the function y = 5 - 2 x when the domain is {0, 1, 2, 3}?
Answer:
5, 3,1,-1
Step-by-step explanation:
Ayudenme a resovlerlo
please help me i am timed
Answer:
B. Z, K, R
Step-by-step explanation:
Z, K, R are in a line so i think it's them im actually not sure but im pretty sure it is
Three times the sum of 2 and e
Answer:
6 + 3e
Step-by-step explanation:
The expression in the mathematical form will be 6 + 3e.
What is Algebra?The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.
Three times the sum of 2 and e. Then the expression in the mathematical form will be
The sum of 2 and e will be
⇒ 2 + e
Then the three times the sum of 2 and e will be
⇒ 3(2 + e)
⇒ 6 + 3e
The expression in the mathematical form will be 6 + 3e.
More about the Algebra link is given below.
https://brainly.com/question/953809
#SPJ2
-6-(-6)-
What is the value
Answer:
0
Step-by-step explanation:
−6−(−6)
=−6−(−6)
=−6+6
=0
Answer:
-12 is the answer
Step-by-step explanation:
Which fraction is the divisor, 2/3 / 1/6?
Answer:
It depends on how the question is structured.
Answer:
1/6
Step-by-step explanation:
wich expressions can be represented by the model?Check all that apply
I’ll mark Brainly! Which problem is being modeled on the number line?
A) (-6) + (-4) = -10
B) (-4) + (-6) = -10
C) -(4 + 6) = -10
D) -(6 + 4) = -10
Answer:
The answer is B
If you answer this I’ll give u brainleiest what is 2+2?????
Answer:
4
Step-by-step explanation:
2+2 is
235 x 26 = estimate the answer
Answer:
6110
Step-by-step explanation: