Probability of worker-distribution is normally distributed

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Q1) Assume that probability that new medication will cause bad side effect is 0.03. If this medication is given to 150 people, find out the probability which exactly three of them will experience bad side effect?

Q2) Average hourly wage of workers at fast food restaurant is $6.50/hr with standard deviation of $0.45. Suppose that distribution is normally distributed. If worker at this fast food restaurant is chosen at random, determine the probability that worker earns more than $6.75?

Q3) It has been observed that electrical connectors made by Jolt Electrical Supply Company last average of 18.2 months and follow normal distribution with standard deviation of 1.7 months. Jolt agrees to replace any connector which fails within 19 months. Out of 500 connectors sold, how many does Jolt expect to replace, on average?

Reference no: EM1318551

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Probability of worker-distribution is normally distributed : Suppose that distribution is normally distributed. If worker at this fast food restaurant is chosen at random,determine the probability that worker earns more than $6.75?

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