What is the nature of the data set

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Data Set 7-2

There were 184 seniors, 179 juniors, 267 sophomores, and 353 freshmen enrolled at a small college.

1. In Data Set 7-2, what is the probability of picking a student at random and getting a freshman?

2. In Data Set 7-2, what is the probability of picking a student at random and getting either a junior or a senior?

3. What is the nature of the Data Set 7-2. (Describe)

Data Set 7-3

A population of scores was normally distributed with a mean of 32 and a standard deviation of 3.

4. Look at Data Set 7-3. What is the proportion that scored between 30 and 27?

5. For Data Set 7-3, what is the range of scores that separate the middle 60 percent from the extremes? (Lower and upper score)

6. Look at Data Set 7-3. What is the proportion of the distribution with scores of 30 or more?

Reference no: EM133076929

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