(4) A college hires students to work as lab assistance. The number of hours per week students work follows a normal distribution with mean = 12 hours and standard deviation = 4.2 hours. Calculate the probability that a lab assistant chosen at random works more than 10 hours per week.

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(4) A college hires students to work as lab assistance. The number of hours per week students work
follows a normal distribution with mean = 12 hours and standard deviation
= 4.2 hours.
Calculate the probability that a lab assistant chosen at random works more than 10 hours per week.
Transcribed Image Text:(4) A college hires students to work as lab assistance. The number of hours per week students work follows a normal distribution with mean = 12 hours and standard deviation = 4.2 hours. Calculate the probability that a lab assistant chosen at random works more than 10 hours per week.
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