What requirements must be satisfied? select all that apply. a. at least one observation must be above or below 9090 sec. b. either the population is normally distributed, or ngreater than> 30, or both. c. the sample observations must be a simple random sample. d. the conditions for a binomial distribution must be satisfied?

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

-6 is the correct option from the above given options