Statistics

$20$20 people were asked how many hours of sleep they had gotten the previous night. The numbers below are each person’s response:

$1,6,9,8,7,9,7,10,2,3,8,7,7,3,7,3,3,7,10,9$1,6,9,8,7,9,7,10,2,3,8,7,7,3,7,3,3,7,10,9

a

How many people got $7$7 hours sleep?

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b

What is the maximum amount of sleep reported by the group?

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Plan and conduct investigations using the statistical enquiry cycle:– determining appropriate variables and data collection methods;– gathering, sorting, and displaying multivariate category, measurement, and time-series data to detect patterns, variations, relationships, and trends;– comparing distributions visually;– communicating findings, using appropriate displays.