A seventh-grade student chooses a random sample of 50 out of
400 students. He finds that 7 students have traveled outside the United
States. The student claims that over 50 of the 400 students have likely
traveled outside the United States. Is the student correct? Explain.

please help with this problem, this is worth a lot of points!

hi, i am not sure about this one but i think its d,

hope this !

what?

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

probability for j is 1/4

while

a is 1/6