1. Find the mean of the data set. If necessary, round to the nearest tenth. 17.2, 18.3, 14.9, 16.8, 15.3

A) 3.4
B) 16.5
C) 16.8
D) 17.2

2. Erin wrote the following set of numbers. 37, 22, 37, 19, 34, 22, 37, 22, 32, 26, 30, 22. What is the mode of this set of numbers?

A) 37
B) 29
C) 28
D) 22

1;16.5 add them together and divide by five it make 16.5

1. add the five numbers together, and divide the sum by five

2. the mode is the most frequent value

1. To find the mean of a data set, you add up all the numbers in the set and then divide by the total number of values.

So, the mean of the data set {17.2, 18.3, 14.9, 16.8, 15.3} is:

(17.2 + 18.3 + 14.9 + 16.8 + 15.3) / 5 = 82.5 / 5 = 16.5

Rounding to the nearest tenth, the mean of the data set is 16.5.

Therefore, the correct answer is B) 16.5.

2. The mode of a set of numbers is the value(s) that appear(s) most frequently.

In the set {37, 22, 37, 19, 34, 22, 37, 22, 32, 26, 30, 22}, the number 22 appears the most frequently.

Therefore, the mode of this set of numbers is 22.

Therefore, the correct answer is D) 22.

To find the mean of a data set, you need to add up all the numbers in the set and then divide the sum by the total number of values.

1. For the first question, we have the data set: 17.2, 18.3, 14.9, 16.8, 15.3.
To find the mean, we add up all the numbers: 17.2 + 18.3 + 14.9 + 16.8 + 15.3 = 82.5.
Then, we divide the sum by the total number of values, which is 5 in this case: 82.5 / 5 = 16.5.

Therefore, the mean of the data set is 16.5, rounded to the nearest tenth.

Option B) 16.5 is the correct choice for the first question.

2. For the second question, we have the data set: 37, 22, 37, 19, 34, 22, 37, 22, 32, 26, 30, 22.
The mode of a set of numbers is the value(s) that appear most frequently.

In this case, the number 22 appears four times, which is more than any other value in the set.
Therefore, the mode of this set of numbers is 22.

Option D) 22 is the correct choice for the second question.