As shown above, a classic deck of cards is made up of 52 cards, 4 suits with clubs and spades black and diamonds and hearts red. There are 13 cards each suit: #2-10, jack, queen, king and ace. Picture (or face) cards are the jack, queen, and king. If you select a card at random, what is the probability of picking a(n) 3 of Hearts ?
15. As shown above, a classic deck of cards is made up of 52 cards, 4 suits with clubs and spades black and diamonds and hearts red. There are 13 cards each suit: #2-10, jack, queen, king and ace. Picture (or face) cards are the jack, queen, and king.
If you select a card at random, what is the probability of picking a(n) 3 of Hearts ?
16.
Giving a test to a group of students, the grades and gender are summarized below
| A | B | C | Total | |
| Male | 3 | 12 | 15 | 30 |
| Female | 5 | 6 | 7 | 18 |
| Total | 8 | 18 | 22 | 48 |
If one student is chosen at random,
Find the probability that the student got a B.
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17. Giving a test to a group of students, the grades and gender are summarized below
| A | B | C | Total | |
| Male | 10 | 6 | 3 | 19 |
| Female | 13 | 7 | 5 | 25 |
| Total | 23 | 13 | 8 | 44 |
If one student was chosen at random,
find the probability that the student was male.
Round your answer two decimal places.
18.
After giving a test to a group of students, below is the summary of grades by gender.
| A | B | C | Total | |
| Male | 10 | 5 | 6 | 21 |
| Female | 7 | 18 | 9 | 34 |
| Total | 17 | 23 | 15 | 55 |
If a student was randomly chosen, find the probability that the student earned a B. Leave your answer as a reduced fraction.
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