Question

QUESTION 14 A farmer has a survival rate of 72% that follows a binomial distribution. If he plants 10 rows of crops, what is the probability that only at most four rows will survive o a. 0.024:2 b. 0.0342 с 0.0462 () d. 0.0352 QUESTION 15 A survey was conducted to determine if basketball, or football, or soccer was the most popular sport. Of the 480-survey people 210 said they prefer soccer, 165 said they prefer football, 105 said they prefer basketball, 60 said they prefer both soccer and football, 45 said they prefer soccer and basketball and 40 said they prefer football and basketball. If a person is selected at random, find the probability that selected person likes soccer or football. a. 0.60 O b. 0.58 o c 0.66 O d. 0.70 ok Save and Submit to save and submit. Click Save All Answers to save all answers.

Answer 1

Q14: probability, p = 0.72

n = 10

Probability that at most 4 rows will survive, P(X<=4)

Using binomial function in excel

=BINOM.DIST(4, 10, 0.72, 1)

= 0.0342

Answer B

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Q15 P(Soccer) = 210/480

P(footabll) = 165/480

P(Soccer and football) = 60/480

P(Soccer of football) = (Soccer) + (Football) - (Soccer and football)

= 210/480 + 165/480 - 60/480

= 0.6563 = 0.66

Answer C