Find the mean, median, mode, range, variance, and standard deviation of numbers 7 11 11 15 20 20 28

Hello!

The mean is 16.

The median is 15.

There is no mode. (11 and 20 both occur twice.)

The range is 21.

The standard deviation is 0.

Hope this was helpful. Correct me if i'm wrong. Have a great day!

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

answer: i can’t tell you that

step-by-step explanation: