What is the main focus of this lesson?

Estimating Population Proportions and Samples

Interactive Video
•
Mathematics
•
6th - 7th Grade
•
Hard

Thomas White
FREE Resource
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
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