Harris Tyler
05/30/2023 · Primary School
3) According to a market survey, approximately \( 25 \% \) of people purchase organic products regularly. A sa of 20 people is studied. Use Table \( A \) and write all probabilities to three decimal places and all other values to two decimal pla a) What is the sample size? b) What is the probability of success? c) Find the probability that exactly 5 of the people purchase organic products regularly. d) Find the probability that at least 7 of the people purchase organic products regularly. e) Calculate the mean. f) Calculate the standard deviation.
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a) Sample size: 20
b) Probability of success: 0.25
c) Probability of exactly 5: 0.200
d) Probability of at least 7: 0.099
e) Mean: 5.00
f) Standard deviation: 1.936
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