Question: 1. Assume a normal distribution and with z score equal 1.2061, what is the probability that the commute time was less than or equal to

1. Assume a normal distribution and with z score equal 1.2061, what is the probability that the commute time was less than or equal to 80 minutes? Draw a graph and illustrate answer. 2. Assume that the mean grade in a test is 60% and a standard deviation of 9%.If a random sample of 40 students is taken, what is the probability that the sample average mark for this sample will be 70% or more? thanks

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