I gave my best educated guess , but I am not sure which answer is correct. The r

Question

I gave my best educated guess , but I am not sure which answer is correct. The reading speed of second grade students in a large city is approximately normal, with a mean of 89 words per minute (wpm) and a standard deviation of 10 wpm. The probability that a random sample of 20 second gr?de students from the city results in a mean reading rate of more than 95 words per minute is 0.0036. Interpret this probability. O If 100 different samples of 20 students were chosen from this population, we would expect 3.6 sample(s) to have a sample mean reading rate of more than 95 words per minute. If 100 different samples of 20 students were chosen from this population, we would expect 36 sample(s) to have a sample mean reading rate of more than 95 words per minute. If 100 different samples of 20 students were chosen from this population, we would expect O sample(s) to have a sample mean reading rate of more than 95 words per minute.

Explanation / Answer

We are given here that the sample mean of 20 second grade students being more than 95 words per minute is 0.0036. This means that in every 100 different samples of 20 such students, we expect about 100*0.0036 = 0.36 that is approximately 0 samples to have a sample mean of more than 95. Therefore C is the correct answer here.

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