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StatisticsQ&A LibraryScores on a statistics final in a large class were normally distributed with a mean of 70 and a standard deviation of 7. Find the following probabilities, round to the fourth.a) What is the probability one randomly chosen score is greater than 88Would it be unusual for this to happen?Select an answer not unusual unusual b) What proportion of scores were below a 45? Would it be unusual for this to happen?Select an answer unusual not unusualQuestion

Asked Oct 16, 2019

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Scores on a statistics final in a large class were normally distributed with a mean of 70 and a standard deviation of 7. Find the following probabilities, round to the fourth.

a) What is the probability one randomly chosen score is greater than 88

Would it be unusual for this to happen?

Select an answer not unusual unusual

b) What proportion of scores were below a 45?

Would it be unusual for this to happen?

Select an answer unusual not unusual

Step 1

a) According to the provided information, it is given µ = 70 and σ = 7

The probability that one...

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