Probability And Statistics Worksheets Page 11
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42Review and Practice Your Skills
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9-1
RACTICE
ESSON
A card is picked at random from a standard deck of 52 cards. Find each theoretical
probability.
1. P(heart)
2. P( jack)
3. P(red card )
4. P(black 2)
5. P(2 or 3)
6. P(7 of hearts)
7. P(3
card
8)
8. P(king of clubs)
You flip a coin four times. Find each theoretical probability.
9. P(no tails)
10. P(exactly one head )
11. P(2 tails, 2 heads) 12. P(4 tails)
13. P(
2 heads)
14. P(0 or 1 head )
15. P(3 tails)
16. P(1, 2, 3 or 4 heads)
You roll a pair of dice and calculate the sum. Find each theoretical probability.
17. P(7)
18. P(11)
19. P(even)
20. P(1)
21. P(12)
22. P(4 or 5)
23. P(6)
24. P(
6)
25. P(10, 11, or 12)
26. P(9)
27. P(
11)
28. P(2)
29. A basketball player has made 48 free throws in her last 72 attempts. What is
the probability she will be successful on her next attempt? How many free
throws do you predict she will make in 600 attempts?
30. A car breaks down while traveling between two cities that are 300 mi apart.
What is the probability that the breakdown is within 18 mi of either city?
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9-2
RACTICE
ESSON
31. A computer generates a list of random 3-digit numbers. Zero cannot be the
first digit. What probability would you expect for a number in the list to
contain the digit “4”?
32. Each box of Toasted Crunchies cereal contains a single prize. There are 4
different prizes uniformly distributed among all boxes of cereal at the
production facility. Describe a simulation you could do to estimate the
probability of getting all 4 prizes if you buy 10 boxes of Toasted Crunchies?
33. Perform and document a simulation to determine the probability that a
family having 2 children will have 1 boy and 1 girl.
34. Perform and document a simulation to find the chances of scoring 50% or
higher on a 5 question multiple choice test. Each question has four choices,
and you guess on each question.
35. Agnes walks her dog each night outside the grounds of Tellco Corporation
between 7:30 and 8:00
.
. First shift workers leave the grounds between 7:30
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M
and 8:30
.
. each night. Describe a simulation using two spinners that you
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M
could use to calculate the probability of Agnes seeing first-shift workers
leaving the grounds during her walk.
36. Describe a simulation you could do to find out how many cards you would
have to draw from a standard deck to get a pair of hearts.
390
Chapter 9 Probability and Statistics
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