Math  /  Data & Statistics

QuestionWhat is the probability a randomly selected student in the city will read more than 97 words per minute? probability is 0.3085. und to four decimal places as needed.) rpret this probability. Select the correct choice below and fill in the answer box within your choice A. If 100 different students were chosen from this population, we would expect to read exactly 97 words per minute B. If 100 different students were chosen from this population, we would expect 31 to read more than 97 words per minute C. If 100 different students were chosen from this population, we would expect to read less than 97 words per minute
What is the probability that a random sample of 10 second grade students from the city results in a mean reading rate of more than 97 words per minute? probability is 0.0571 und to four decimal places as needed.) rpret this probability. Select the correct choice below and fill in the answer box within your choice. A. If 100 independent samples of n=10n=10 students were chosen from this population, we would expect \square sample(s) to have a sample mean reading rate of less than 97 words per minute. B. If 100 independent samples of n=10n=10 students were chosen from this population, we would expect \square sample(s) to have a sample mean reading rate of exactly 97 words per minute. C. If 100 independent samples of n=10\mathrm{n}=10 students were chosen from this population, we would expect \square sample(s) to have a sample mean reading rate of more than 97 words per minute.

Studdy Solution
Interpret the probability for a sample of students:
Given the probability is 0.0571, if 100 independent samples of n=10 n=10 students were chosen from this population, we would expect approximately 100×0.0571=5.71 100 \times 0.0571 = 5.71 samples to have a sample mean reading rate of more than 97 words per minute. Rounding to the nearest whole number, we get 6.
Therefore, the correct choice is:
C. If 100 independent samples of n=10 n=10 students were chosen from this population, we would expect 6 sample(s) to have a sample mean reading rate of more than 97 words per minute.

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