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#4 Find the area under the standard normal curve to the right of z=1. A- 0.1587...

#4 Find the area under the standard normal curve to the right of z=1.

A- 0.1587
B- 0.8413
C- 0.5398
D- 0.1397

#7- A physical fitness association is including the mile run in its​ secondary-school fitness test. The time for this event for boys in secondary school is known to possess a normal distribution with a mean of 470 seconds and a standard deviation of 60 seconds. Find the probability that a randomly selected boy in secondary school can run the mile in less than 332 seconds.

A- 0.9893
B- 0.0107
C- 0.4893
D- 0.5107

math   Statistics-And-Probability   
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