Question

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What is the mean for Doctor A’s data set on glasses? What is the mean for Doctor B’s data set on glasses? Write a sentence comparing the number of people who wear glasses in the two data sets.

Answer 1

Doctor A’s dataset on glasses has the mean of 643.9. Doctor B’s dataset on glasses has the mean of 635.6. Doctor A has the average of 643.9 people who wear glasses while Doctor B has the average of 635.6 people who wear glasses.

Answer 2

Doctor A

Mean = 643.9

x |x - Mean|

643 0.9

634 9.9

670 26.1

658 14.1

636 7.9

624 19.9

641 2.9

655 11.1

649 5.1

629 14.9

112.8

mean absolute deviation = 112.8/10 = 11.28

Doctor B

Mean = 636.6

x |x - Mean|

651 14.4

625 11.6

622 14.6

624 12.6

631 5.6

621 15.6

653 16.4

647 10.4

646 9.4

646 9.4

120

mean absolute deviation = 120/10 = 12

Explanation:

I KNOW