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Practice 3B for QR

Last updated over 1 year ago

11 questions

Untitled Section

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1

#3-5

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1

1

#6-10

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1

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Question 1

1.

Note: There is no wrong answer for this question.

a

b

c

Question 2

2.

Note the black vertical line is the location of the mean, which is 4.6.

https://www.waterbenefitshealth.com/water-and-brain.html

Question 3

3.

Question 4

4.

Question 5

5.

Question 6

6.

42

38

36

40

Question 7

7.

Note: Sample Mean= Total/6

Question 8

8.

Note: Sample Mean= Total/6

Question 9

9.

37

38

39

Question 10

10.

How does the sample mean (problem 9) compare to the population mean (problem 6)?

The sample mean is less than the population mean.

The sample mean is equal to the population mean.

The sample mean is greater than the population mean.

Question 11

11.

How does the spread (range) of data points in the sample dot plot (problem 9) compare to the spread (range) of data points in the population dot plot (problem 6)?

The spread for the sample dot plot is smaller than the population spread.

The spread for the sample dot plot is the same as the population spread.

The spread for the sample dot plot is greater than the population spread.