The ages (in years) for a simple random sample of students from a large college are as follows: 20, 18, 20, 18, 19, 18, 21, 19 1. What proportion of the students in the sample are 19 years old or younger [i.e. Pr(Y ≤ 19)]? 2. Of the students in the sample who are 19 years old or older, what proportion are 20 years old or younger [i.e. Pr(Y ≤20 | Y³ 19)]? 3. What are the mean and median age (in years) for the students in the sample?

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The ages (in years) for a simple random sample of students from a large college are as follows:
20, 18, 20, 18, 19, 18, 21, 19
1. What proportion of the students in the sample are 19 years old or younger [ i.e. Pr(Y ≤ 19)] ?
2. Of the students in the sample who are 19 years old or older, what proportion are 20 years
3
old or younger [i.e. Pr(Y≤20 | Y³ 19)]?
3. What are the mean and median age (in years) for the students in the sample?
Transcribed Image Text:The ages (in years) for a simple random sample of students from a large college are as follows: 20, 18, 20, 18, 19, 18, 21, 19 1. What proportion of the students in the sample are 19 years old or younger [ i.e. Pr(Y ≤ 19)] ? 2. Of the students in the sample who are 19 years old or older, what proportion are 20 years 3 old or younger [i.e. Pr(Y≤20 | Y³ 19)]? 3. What are the mean and median age (in years) for the students in the sample?
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The ages of a simple random sample of n = 8 students from a large college are given.

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