The chance of contacting strep throat when coming into contact with an infected person is estimated as 0.15. Suppose the four children of a family come into contact with an infected person. Conduct a simulation to answer the following questions. Use the random number table below and conduct 20 trials. Clearly identify each trial on the table.
(a) Using your results, estimate the average number of children who will get the disease.
(b) What is the probability of two of the children getting the disease?
(c) What is the probability of at least two of the children getting the disease?
31151 64727 88795 93736 22189 47004
48304 77410 78871 98387 44647 18072
65194 58586 78232 57097 01430 00304
32036 23671 65929 97613 94452 56211
85446 13656 32155 84455 38125 50339
82178 19650 41283 13944 13736 02627
41929 60613 73840 53838 90804 94332