A frequency distribution for the class level of students in an introductory statistics course is shown. Two students are randomly selected without replacement. Complete parts (a) through (d). Class
Frequency

Freshman
6
Sophomore
16
Junior
12
Senior
7
a. Determine the probability that the first student obtained is a junior and the second a senior.

.

Step-by-step explanation:

Formula : Probability =

From the given frequency distribution for the class level of students in an introductory statistics course, we have

Number of Junior= 12

Number of Senior = 7

Total students = 6+16+12+7 = 41

Probability that the first student obtained is a junior =

Probability that the the second student obtained is a senior.

Then, the probability that the first student obtained is a junior and the second a senior would be

Hence, the required probability is .

the answer

b. they are parallel and will never intersect.