Estimating Population Proportions and Samples

Estimating Population Proportions and Samples

Assessment

Interactive Video

Mathematics

6th - 7th Grade

Hard

Created by

Thomas White

FREE Resource

In this lesson, Mr. Holcomb explains how to estimate population proportions using sample data. The video covers calculating the mean of sample proportions, constructing dot plots, and interpreting results. Two examples are provided: one involving seventh graders estimating vegetarian proportions, and another using survey data from Roosevelt Middle School. The lesson emphasizes the importance of sample size and variability in making accurate population estimates.

Read more

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main focus of this lesson?

Calculating the mean of sample proportions

Estimating a population proportion

Understanding the concept of median

Learning about standard deviation

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In Example 1, what was the sample size each seventh grader used?

20 students

15 students

25 students

10 students

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How close was the calculated mean of the sample proportions to the actual population proportion?

Not comparable

Exactly the same

Very close

Significantly different

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the actual population proportion of vegetarians in the middle school?

0.20

0.15

0.25

0.10

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a sample proportion of 0% indicate?

The sample size was too small

All students are vegetarians

Half of the students are vegetarians

No students are vegetarians

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the shape of the distribution in the dot plot constructed in the exercises?

Skewed left

Skewed right

Symmetrical mound-shaped

Uniform

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In Example 2, what superpower was the class interested in estimating?

Freeze time

Telepathy

Super-strength

Invisibility

Create a free account and access millions of resources

Create resources
Host any resource
Get auto-graded reports
or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?