Page 565 - Basic College Mathematics with Early Integers

542 C HAPTE R 7 I STATISTICS AND PROBABILITY

Review

Perform each indicated operation. See Sections 3.3 and 3.5.

1 1 7 2 1 1 7 2 3 3
35. + 36. - 37. # 38. , 39. 5 , 40. # 10
2 3 10 5 2 3 10 5 4 5

Concept Extensions

Recall that a deck of cards contains 52 cards.These cards consist of four
suits (hearts, spades, clubs, and diamonds) of each of the following: 2, 3, 4, 5,
6, 7, 8, 9, 10, jack, queen, king, and ace. If a card is chosen from a deck of
cards, find the probability of each event.

41. The king of hearts 42. The 10 of spades

43. A king 44. A 10

45. A heart 46. A club

47. A card in black ink 48. A queen or ace

Two dice are tossed. Find the probability of each sum of the dice. (Hint: Draw a tree diagram of the possibilities of two
tosses of a die, and then find the sum of the numbers on each branch.)

49. A sum of 6 50. A sum of 10 51. A sum of 13 52. A sum of 2

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Solve. See the Concept Check in this section.

53. In your own words, explain why the probability 54. In your own words, explain when the probability
of an event cannot be greater than 1. of an event is 0.