Question: The frequency distribution shown here illustrates the number of medical

The frequency distribution shown here illustrates the number of medical tests conducted on 30 randomly selected emergency patients.
Number of tests Number of
performed patients
0.......... 12
1 ............8
2 ............2
3 ............3
4 or more .......5
If a patient is selected at random, find these probabilities.
a. The patient has had exactly 2 tests done.
b. The patient has had at least 2 tests done.
c. The patient has had at most 3 tests done.
d. The patient has had 3 or fewer tests done.
e. The patient has had 1 or 2 tests done

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  • CreatedSeptember 04, 2015
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