Computing probability by standard normal distribution

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Reference no: EM1323269

Q1) Determine probability, P(Z < 0.17), using standard normal distribution.

a) .8300

b) .4325

c) .5675

d) .0675

Q2) Average height of flowering cherry trees in nursery is 11 feet. If heights are normally distributed with standard deviation of 1.6, determine probability that randomly selected cherry tree in this nursery is less than 13 feet tall.

a) 0.67

b) 0.89

c) 0.95

d) 0.11

Q3) Mrs. Smith's reading class can read mean of 175 words per minute with standard deviation of 20 words per minute. Top 3% of class is to get a special award. Determine the minimum number of words per minute student would have to read to get award?

Reference no: EM1323269

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