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09-10-2022
Mathematics

Answered

1. A) Robert decided to investigate the statistical question: How many hours per night do 6th graders usually
sleep when they have school the next day? He asks 29 6-graders and records the data in a dot plot.
5
8
9
10
Number of Hours of Sleep on a School Night
a) What is the variable here?
b) What is the least number of hours of sleep recorded?
c) What is the greatest number of hours of sleep recorded?
Sleep / modle
d) What is the most common number of hours of slept?
11
12
e) The distribution is symmetrical and bell-shaped, or left skewed, or right skewed? How do you know?

Answer :

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