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Extra Practice: Homogeneous Groups and Expected Number

Last updated about 5 years ago

11 questions

3

Question 1

1.

If you have a group of 400 12th grade students (boys and girls who had ridden a bicycle during the previous 12 months), how many would you expect to say that yes, they wore a bicycle helmet? Include all calculations to support your answer.

5

3

Question 2

2.

If you have a group of 350 adults, how many would you expect to prefer Sprite? Include your calculations to support your answer.

1

2

1

2

1

2

1

2

Question 11

11.

Determine if the three groups (Division I, Division II, and Division III) are homogeneous (HINT: compare proportions). Clearly label your work and include all calculations to support your answer.

Question 3

3.

What proportion of students at Delcastle are Freshmen?

Question 4

4.

What is the expected number of students in the sample of 250 who will be Freshmen? Include your calculations with your final answer.

Question 5

5.

What proportion of students at Delcastle are Sophomores?

Question 6

6.

What is the expected number of students in the sample of 250 who will be Sophomores? Include your calculations with your final answer.

Question 7

7.

What proportion of students at Delcastle are Juniors?

Question 8

8.

What is the expected number of students in the sample of 250 who will be Juniors? Include your calculations with your final answer.

Question 9

9.

What proportion of students at Delcastle are Seniors?

Question 10

10.

What is the expected number of students in the sample of 250 who will be Seniors? Include your calculations with your final answer.