Suppose a poll of 1066 adults asked how to deal with an energy shortage: use more production, more conservation, or both? Suppose 3 people are selected at random from this sample

More Production: 415
More Conservation: 572
Both: 55
No Opinion: 24
Total: 1066

a) What is the probability that all three responded "More conservation"?
(Round to three decimal places as needed.)
b) What is the probability that none responded "Both"?
(Round to three decimal places as needed.)
c) What assumption must be made to compute these probabilities?
A. The events are independent. B. The events occur simultaneously. C. The order of the events does not matter. D. The events are disjoint.

I believe the answer is 4

Step-by-step explanation:

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

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