SOLUTION: Question text
100 STAT 2070 students took the course in a particular semester and one student is randomly selected. Find the following probability (give your answer as a DECIMAL,
Algebra.Com
Question 977785: Question text
100 STAT 2070 students took the course in a particular semester and one student is randomly selected. Find the following probability (give your answer as a DECIMAL, and round to four places if necessary).
Fr So Total
A 12 11 23
B 22 11 33
C 15 15 30
D 5 4 9
F 2 3 5
Total 56 44 100
P(the student got an A AND is a Freshman)
Answer:Incorrect
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
| Fr | So | Total |
|---|
| A | 12 | 11 | 23 |
|---|
| B | 22 | 11 | 33 |
|---|
| C | 15 | 15 | 30 |
|---|
| D | 5 | 4 | 9 |
|---|
| F | 2 | 3 | 5 |
|---|
| Total | 56 | 44 | 100 |
|---|
There are 12 people who are freshmen and who got an A. Look in the "A" row and the "Fr" (freshmen) column.
There are 100 people total.
So,
P(the student got an A AND is a Freshman) = (number who are freshmen AND got an A)/(number total)
P(the student got an A AND is a Freshman) = 12/100
P(the student got an A AND is a Freshman) = 0.12
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