19. Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 9 20 10 39 Female 8 15 2 25 Total 17 35 12 64 If one student was chosen at random, find the probability that the student got a C. Give your answer as a fraction or decimal. 20. After giving a test to a group of students, below are the summary of grades by gender. A B C Total Male 10 3 19 32 Female 13 14 5 32 Total 23 17 24 64 If a student is randomly chosen, find the probability that the student did not earn an C. Round your answer to four decimal places. 21. After giving a test to a group of students, below are the summary of grades and gender. Write as a reduced fraction. A B C Total Male 4 8 11 23 Female 6 2 3 11 Total 10 10 14 34 If a student is randomly chosen, find the probability that the student did not earn an "B"
19. Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 9 20 10 39 Female 8 15 2 25 Total 17 35 12 64 If one student was chosen at random, find the probability that the student got a C. Give your answer as a fraction or decimal. 20. After giving a test to a group of students, below are the summary of grades by gender. A B C Total Male 10 3 19 32 Female 13 14 5 32 Total 23 17 24 64 If a student is randomly chosen, find the probability that the student did not earn an C. Round your answer to four decimal places. 21. After giving a test to a group of students, below are the summary of grades and gender. Write as a reduced fraction. A B C Total Male 4 8 11 23 Female 6 2 3 11 Total 10 10 14 34 If a student is randomly chosen, find the probability that the student did not earn an "B"
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section: Chapter Questions
Problem 7CC
Related questions
Question
19. Giving a test to a group of students, the grades and gender are summarized below
| A | B | C | Total | |
| Male | 9 | 20 | 10 | 39 |
| Female | 8 | 15 | 2 | 25 |
| Total | 17 | 35 | 12 | 64 |
If one student was chosen at random,
find the probability that the student got a C.
Give your answer as a fraction or decimal.
20.
After giving a test to a group of students, below are the summary of grades by gender.
| A | B | C | Total | |
| Male | 10 | 3 | 19 | 32 |
| Female | 13 | 14 | 5 | 32 |
| Total | 23 | 17 | 24 | 64 |
If a student is randomly chosen, find the probability that the student did not earn an C. Round your answer to four decimal places.
21. After giving a test to a group of students, below are the summary of grades and gender.
Write as a reduced fraction.
If a student is randomly chosen, find the probability that the student did not earn an "B"
Write as a reduced fraction.
| A | B | C | Total | |
| Male | 4 | 8 | 11 | 23 |
| Female | 6 | 2 | 3 | 11 |
| Total | 10 | 10 | 14 | 34 |
If a student is randomly chosen, find the probability that the student did not earn an "B"
22. A card is drawn randomly from a standard 52-card deck. Find the probability of the given event.
Write your answers as reduced fractions or whole numbers.
(a) The card drawn is 10
Write your answers as reduced fractions or whole numbers.
(a) The card drawn is 10
- PP(10) =
- PP(not 10) =
- PP(face card) =
- PP(not a face card) =
23. According to Masterfoods, the company that manufactures M&M’s, 12% of peanut M&M’s are brown, 15% are yellow, 12% are red, 23% are blue, 23% are orange and 15% are green.
[Round your answers to three decimal places, for example: 0.123]
a) Compute the probability that a randomly selected peanut M&M is not brown.
b) Compute the probability that a randomly selected peanut M&M is green or blue.
[Round your answers to three decimal places, for example: 0.123]
a) Compute the probability that a randomly selected peanut M&M is not brown.
b) Compute the probability that a randomly selected peanut M&M is green or blue.
24. A card is drawn randomly from a standard 52-card deck. Find the probability of the given event.
(a) The card drawn is 2
The probability is :
(b) The card drawn is a face card (Jack, Queen, or King)
The probability is :
(c) The card drawn is not a face card.
The probability is :
(a) The card drawn is 2
The probability is :
(b) The card drawn is a face card (Jack, Queen, or King)
The probability is :
(c) The card drawn is not a face card.
The probability is :
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