What happens to the mean of the data set {10, 2, 8, 9, 5, 2, 6} if the number 12 is added to the data set? A. The mean increases

Question

2 years ago

9

by 2. B. The mean increases by 12. C. The mean increases by 0.75. D. The mean increases by 1.75.

2 answers:

Setler [38] · Answer 1 · 2022-12-09T16:48:03+03:00

Answer:

C. The mean increases by 0.75.

Step-by-step explanation:

The mean of a data set is given by the sum of all its values, divided by the number of values.

Data set {10, 2, 8, 9, 5, 2, 6}

7 values

Sum: 10 + 2 + 8 + 9 + 5 + 2 + 6 = 42

Mean: 42/7 = 6

Adding number 12 to the data set

Now we have 8 values

The sum is 42 + 12 = 54

The mean is 54/8 = 6.75

This means that the mean increases by 0.75.

Kisachek [45] · Answer 2 · 2022-12-09T18:50:53+03:00

6 0

Answer:

C. 7.5

Step-by-step explanation:

the mean increases by it