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1) The weights of suitcases at an airport are normally distributed with a mean of 17kg...

1) The weights of suitcases at an airport are normally distributed with a mean of 17kg and standard deviation 3.4kg.
a. Find the probability that a randomly selected suitcase weighs between 10kg and 15kg.

b. Find the probability that a randomly selected suitcase weighs at least 20 kg.

c. Find the probability that a randomly selected suitcase weighs less than 12 kg.

2) On New Year's Eve, the probability of a person having a car accident is 0.29. The probability of a
person driving while intoxicated is 0.32 and probability of a person having a car accident while
intoxicated is 0.15. What is the probability of a person driving while intoxicated or having a car
accident?

Math   Statistics-And-Probability   
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