Question

The dot plots show the number of minutes that each of two sisters practiced the piano each day for 14 days.

Answer 1

• Ana has the greater median
• Ana also has the greater mean.

Averagely, Ana practiced for a greater amount of time each day.

What is the Mean and Median of a Data Set?

• Mean = sum of data points / number of data points.
• Median = center/middle of the data distribution.

Mean for ana= (20 + 20 + 30 + 60 + 60 + 60 + 70 + 70 + 100 + 100 + 100 + 115 + 115 + 115)/14 = 69.6

Mean for tara= (20 + 20 + 30 + 30 + 45 + 45 + 45 + 70 + 70 + 70 + 75 + 90 + 90 + 120)/14 = 58.6

Median for ana= 70

Median for tara= (45 + 70)/2 = 57.5

Ana has the greater median and also has the greater mean.

Averagely, we can conclude that ana practiced for a greater amount of time each day.

Learn more about the mean and median of a data on:

brainly.com/question/19243813

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