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:

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you