Question

Pedro buys lunch at school every day. He always gets pizza when it isavailable. The cafeteria has pizza about 80% of the time.Pedro runs a simulation to model this using a random number generator. Heassigns these digits to the possible outcomes for each day of the week:• Let 0 and 1 = no pizza available• Let 2, 3, 4, 5, 6, 7, 8, and 9 = pizza availableThe table shows the results of the simulation.95032 | 47150 | 71709 | 38889 | 9400735013 | 57890 | 72924 19365 | 47879 |What is the estimated probability that Pedro will eat pizza for lunch every day next week?A. 0.0B. 0.4C. 0.3D. 0.7

Answer 1

C. 0.3

Step-by-step explanation:

To find the estimated probability we need to identify the number of times that Pedro eats pizza each week.

The results show, for example, that for the week with number 95032, he eats pizza four days of the week because there is only one 0 in the given number.

So, for each week in the simulation, we get:

95032: It is available 4 days

47150: It is available 3 days

71709: It is available 3 days

38889: It is available every day of the week

94007: It is available 3 days

35013: It is available 3 days

57890: It is available 4 days

72924: It is available every day of the week

19365: It is available 4 days

47879: It is available every day of the week

Since 3 of the 10 weeks, the pizza is available every day of the week, we get that the estimated probability is:

P = 3/10 = 0.3

So, the answer is C. 0.3