Use the relative frequency method to estimate the probability. Round to three decimal places.

A pollingfirm, hired to estimate the likelihood of the passage of anup-coming referendum, obtained the set of survey responses to make its estimate. The encoding system for the datais:

0 = FOR

1=AGAINST.

0,1,1,0,0,1,0,1,1,0,0,0,1,0,1,0,0,0,1,0

If the referendum were heldtoday, estimate the probability that it would pass.

A.

0.65

B.

0.4

C.

0.5

D.

0.6