You have found the following ages (in years) of all 6 lions at your local zoo: 13, 2, 1, 5, 2, 7 What is the average age of the lions at your zoo? What is the standard deviation? Round your answers to the nearest tenth.

5 years

Step-by-step explanation:

Add up all of the ages (13+2+1+5+2+7=30) and divide it by the number of lions (6). 30/6=5

Standard Deviation = 4.5

Step-by-step explanation:

stops on an even number.

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a