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26-04-2020
Mathematics

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Ms. Riders asked 15 piano students how many hours of practice they put in each week. The list shows the data she recorded.

6, 6, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9, 9, 10, 10

Which statement is true?

A. The skew of the data cannot be determined

B. The data is symmetrical

C. The data is skewed to the left

D. The data is skewed to the right

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jimthompson5910 jimthompson5910

26-04-2020

See the attached image below for the dot plot. The center is at 8 with dots on either side of 8 being a mirror copy of one another. For example, there are 2 dots over 6 and 2 dots over 10

Answer: B. The data is symmetrical

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