For the standard normal distribution find the probability

Reference no: EM13637259

1. The area between z = 0 and z = 0.8 under the standard normal curve is?

(Round to four decimal places)

2. For the standard normal distribution, find the probability of z occuring in the indicated region of -2.06 and 1.16.

The probability is? (Round to four decimal places.)

3. The times per week a student uses a lab computer are normally distributed, with a mean of 6.2 hours and a standard deviation of 0.9 hours. A student is randomly selected. Find the following probabilities.

a) Find the probability that the student uses a lab computer less than 4 hours per week.

b) Find the probability that the student uses a lab computer between 5 and 7 hours per week.

c) Find the probability that the student uses a lab computer more than 8 hours per week.

(Round to three decimal places)

Reference no: EM13637259

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