With this question lisa bought 5 cds from a store. the price of each cd was the same. after she bought the cds, her account balance showed a change of −$64.95. what would have been the change to lisa's account balance had she only bought 1 cd from the store?
−$59.95
−$12.99
$12.99
$59.95

-12.99

Step-by-step explanation:

-64.95 / 5 = -12.99

The change would be -12.99

The answer is 1.67

Step-by-step explanation:

First, find the mean by adding all of the numbers and divide them by how many numbers there are, so 17+15+16+20+15+19=102 Then 102/6= 17. Then take the mean and subtract it by every number, and make sure it is the number’s absolute value.

17-17=0, 15-17=2, 16-17=1, 20-17=3, 15-17=2, 19-17=2. Then add all of those numbers and divide them by how many numbers there are. 0+2+1+3+2+2=10. 10/6=1.67