A random sample of incoming college freshmen at a local university were surveyed

Question

A random sample of incoming college freshmen at a local university were surveyed prior to their first day of classes. They were asked how many classes (3 credit hours each) they enrolled in in their first semester. The results are displayed in a probability distribution below:

A random sample of incoming college freshmen at a local university were surveyed prior to their first day of classes. They were asked how many classes (3 credit hours each) they enrolled in in their first semester. The results are displayed in a probability distribution below:

Explanation / Answer

We need to calculate

P(X>=4)

= P(X= 4)+P(X= 4)+P(X= 4)+P(X= 4)

= 0.03+0.06+0.28+0.33

= 0.70

So, probability that a randomly chosen freshmen is a full-time student is 0.70

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