There were 171 seniors, 165 juniors, 275 sophomores, and 334 freshmen enrolled at a small college.
- In Data Set 2.1, what is the probability of picking a student at random and getting a freshman?
- In Data Set 2.1, what is the probability of picking a student at random and getting either a junior or a senior?
- What is the nature of the Data Set 2.1 (Describe)
Data Set 3.1
A population of scores was normally distributed with a mean of 25 and a standard deviation of 4.
- Look at Data Set 3.1 What is the proportion that scored between 30 and 27?
- For Data Set 3.1, what is the range of scores that separate the middle 60 percent from the extremes? (Lower and upper score)
- Look at Data Set 3.1 What is the proportion of the distribution with scores of 30 or more?
