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MArishka [77]
3 years ago
14

According to a Pew Research Center report from 2012, the average commute time to work in California is 27.5 minutes. To investig

ate whether a different average is true for the small city that she lives in, a California high school student surveys 45 people she knows-her teachers, her parents and their friends and co-workers - and finds the average commute time for this sample to be 24.33 minutes, with a standard deviation of 9.53 minutes The data were not strongly skewed
a. Identify the observational units for this study.

b. Identify the variable of interest and state whether it is categorical or quantitative.

c. Identify (in words and using an appropriate symbol) the parameter of interest
Mathematics
1 answer:
FinnZ [79.3K]3 years ago
7 0

Answer:

b. Identify the variable of interest and state whether it is categorical or quantitative.

Step-by-step explanation:

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Simple question: What is the difference between 32% vs 15%?
nalin [4]

Answer:

Look below :)

Step-by-step explanation:

Well one of them is a bigger percentile, so the difference is 32-15. So the answer is 17. I hope this helps!

6 0
3 years ago
The Panthers did not score more points than the Tigers. The Tigers scored fewer points than the Lions. The Lions scored fewer po
Lunna [17]

Answer:Wolverines

Step-by-step explanation:

The panthers <  tigers               Tiger  1

Tigers  <   Lions                          Lions  2

Lions< wolverines                      Panthers   0

Lions> Panthers                         Wolverines  1

Even though the lions scored more wolverines scored more than the panthers since the panthers didn't score a single point according to my calculations

4 0
3 years ago
Solve by Substitution<br> Show Steps<br> −2x + 3y + 5z = −21<br> −4z = 20<br> 6x − 3y = 0
Anarel [89]

−2x + 3y + 5z = −21

−4z = 20

6x − 3y = 0

do -4z=20 first

divide both sides by -4 to get z by itself

-4z/-4=20/-4

z=-5

Use z=-5 into −2x + 3y + 5z = −21

-2x+3y+5(-5)=-21

-2x+3y-25=-21

move -25 to the other side

sign changes from -25 to +25

-2x+3y-25+25=-21+25

-2x+3y=4

6x-3y=0

find x by eliminating y

Add the equations together

-2x+6x+3y+(-3y)=4+0

-2x+6x+3y-3y=4

4x=4

Divide by 4 for both sides

4x/4=4/4

x=1

Use x=1 into 6x − 3y = 0

6(1)-3y=0

6-3y=0

Move 6 to the other side

6-6-3y=0-6

-3y=-6

Divide both sides by -3

-3y/-3=-6/-3

y=2

Answer:

(1, 2, -5)

5 0
4 years ago
Read 2 more answers
Graph the line with slope 4/3 and y-intercept -3
marta [7]

Step-by-step explanation:

m=4/3

b=(0,-3)

graph the point(0,-3)then go 4 times up then 3 times to the right as in positive.

8 0
3 years ago
Saj makes Rose Pink paint and Cherry Pink paint. He mixes red paint with white paint as shown. Rose Pink red : white =1:2 Cherry
Julli [10]

Answer:

No. He had not made cherry pink paint

Step-by-step explanation:

Rose Pink red : white = 1 : 2

Cherry Pink red : white = 4 : 3

<em>...he adds 80 litres of red paint and 28 litres of white paint.</em>

The question basically want us to check if it follows the ratio.

To have the cherry pink, the ratio must be 4:3 however the ration of paint he mixed is;

80 : 28 which is equivalent to 20 : 7

This means he had not made cherry pink paint

5 0
3 years ago
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