A university conducted a survey of 381 undergraduate students regarding satisfaction with student government. Results of...

A university conducted a survey of

381

undergraduate students regarding satisfaction with student government. Results of the survey are shown in the table by class rank. Complete parts (a) through (d) below.

   Freshman   Sophomore   Junior   Senior
Satisfied 54   48   64   60
Neutral 30   20   17   14
Not satisfied   25   19   10   20

(a) If a survey participant is selected at random, what is the probability that he or she is satisfied with student government?

(b) If a survey participant is selected at random, what is the probability that he or she is a junior?

(c) If a survey participant is selected at random, what is the probability that he or she is satisfied and a junior?

(d) If a survey participant is selected at random, what is the probability that he or she is satisfied or a junior?

Expert Solution

a. Probability that participant selected at random is satisfied with student government is 0.5931

b. Probability that participant selected at random is junior is 0.2388

c. Probability that participant selected at random is satisfied and junior is 0.1574

d. Probability that participant selected at random is satisfied or junior is 0.6745

Complete solution is given in attached images.

orchestra answered 2 years ago

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