Mean of Data Set

Mrs. Frenz has 5 members in her family. Her husband is 41, her son is 8, her oldest daughter is 5, and her youngest daughter is 1. If the mean of their ages is 17.8, how old is Mrs. Frenz?

• 35

• 34

• 31

• 28

The number of pages that Mia wrote in her journal each day from Monday to Friday is shown below: 9, 8, 12, 11, 20 What is the mean number of pages she wrote per day?

• 5

• 6

• 9

• 12

What is the mean for these numbers?
5,5,5,5

• 5

• 20

• 15

• 100

On the semester final, Joe scored 85, Jill scored 89, and Bill scored a 99.What was the average score for these students? _________

• 91

• 273

The 5th grade class was in charge of the dinosaur exhibit at the school science fair. Jason brought21 dinosaur models, Lisa brought 13 dinosaur models, Sara brought 6 dinosaur models, and Jimbrought 24 dinosaur models.What is the average number of dinosaur models that each student brought to the fair? _________

• 24

• 16

• 6

• 4

What is the mean of the data set: 5, 8, 12, 15, 20?

• The mean of the data set is 5.

• The mean of the data set is 20.

• The mean of the data set is 12.

• The mean of the data set is 8.

Calculate the mean of the following numbers: 25, 30, 35, 40, 45, 50, 55.

• The mean of the given numbers is 45.

• The mean of the given numbers is 35.

• The mean of the given numbers is 40.

• The mean of the given numbers is 60.

Explain the concept of average and how it is related to finding the mean of a data set.

• The average is the middle value in a data set, and it is related to finding the mean of a data set.

• The average is the sum of all the values in a data set divided by the number of values, and it is related to finding the mean of a data set.

• The average is the lowest value in a data set, and it is related to finding the mean of a data set.

• The average is the highest value in a data set, and it is related to finding the mean of a data set.

Provide an example of a real-life scenario where finding the mean of a data set is useful.

• One example is in the field of education, where the mean score of a class on a test can help the teacher understand the overall performance of the students.

• The mean of a data set is useful for determining the total sales of a company in a given period.

• In sports, finding the mean of a player's scores can help in understanding their overall performance.

• Finding the mean of a data set is useful for calculating the average temperature of a city over a year.

If the mean of a data set is 18, how would you interpret this in the context of the data?

• The mean of 18 suggests that the average value of the data set is 18.

• The mean of 18 indicates that the data set has a wide range of values

• The mean of 18 implies that the data set has a median of 18

• The mean of 18 means that the data set has a mode of 18