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# Percentage

Posted on 2016-07-29

Can you please explain it how these answers are calculated? Thanks.

(a) 6.608 (approx 7)

(b) 0.0045

(c) 0.0036

(d) B

A center that studies voting in a particular country indicated that 59% of the voting-age voters cast ballots in a presidential election. It also indicated in the west, 39.9% of voting-age voters voted for a Democrat as a representative, an increase from 36.1% in the previous

election. A start-up company in the western region of the country has 10 employees. Use this information to complete parts a through d.

a. How many of the employees would you expect to have voted for a Democrat as a representative

____ (Type an integer or a decimal.)

b. All of the employees indicated that they voted in the presidential election. Determine the probability of this assuming they followed the

national trend. ____ (Round to four decimal places as needed.)

c. Nine of the employees voted for a Democratic representative. Determine the probability that at least 9 of the employees would vote for

the Democrat if they followed the national trend. ____ (Round to four decimal places as needed.)

d. Based on your calculations in parts b and c, do the employees reflect the national trend Support your answer with statistical

calculations and reasoning.

A. No, because the probabilities found in parts b and c are very small, which means that the assumption that the employees followed the

national trend is not valid.

B. Yes, because the probabilities found in parts b and c are very small, which means that the assumption that the employees followed the

national trend could be valid.

C. Yes, because the probabilities found in parts b and c are not that small, which means that the assumption that the employees followed

the national trend could be valid.

D. No, because the probabilities found in parts b and c are not that small, which means that the assumption that the employees followed

the national trend is not valid.