You have found the following ages (in years) of 5 zebras. The zebras are randomly selected from the 42 zebras at your local zoo: 8, 11, 17, 7, 19
Based on your sample, what is the average age of the zebras? What is the estimated variance of the ages?
You may round your answers to the nearest tenth.
Average age:

Variance:

What is the equation and solution for the sentence? the sum of a number and thirty-one is one hundred thirteen. write the equation as n-31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and add 31 to both sides. the answer is 144. write the equation as n-31=113 and add 31 to both sides. the answer is 144.

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu