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Jerry has taken a random sample of students and determined the number of electives that each student in his sample took last year. There were 19 students in the sample. Here is the data on the number of electives the 19 students took: 6, 6, 8, 7, 7, 7, 8, 9, 10, 8, 7, 6, 9, 6, 8, 7, 9, 7, 10. The mean of this sample data is 7.63. What would the mean be for a different random sample of 19 students from the same population?

A. The second mean would be the same as the first mean.
B. The second mean would be higher than the first mean, but within 1 standard deviation.
C. The second mean would be lower than the first mean, but within 1 standard deviation.
D. There is insufficient data to predict the mean for the second sample.

User Medloh
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2 Answers

5 votes

Answer:

d

Step-by-step explanation:

taking the test rn lol

User Ashwin Mahajan
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6 votes

The answer here is D, there is not sufficient enough data to answer this question. You would need to know the original sample was large enough to make predictions about the population as a whole. If the population of students was a large population, then the first sample wouldn't be large enough to predict the means of the next sample.

User Mark Danese
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