Suppose that x is a binomial random variable with n = 10 and p = 0.25. find p (4). write only a number as your answer. round to 4 decimal places (for example 0.1849). do not write as a percentage.

Question

Javan

Mathematics

6 December, 19:53

Suppose that x is a binomial random variable with n = 10 and p = 0.25. find p (4). write only a number as your answer. round to 4 decimal places (for example 0.1849). do not write as a percentage.

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Matthias Bowen · Answer 1

If you have access to a TI-83 or 84-Plus calculator, try the following command:

binompdf (10, 0.25, 4). The output I get is 0.1460. Thus, the probability of getting a "4" is 0.1460.

If you do not have such a calculator, you may be able to find this result in a binomial probability table. Look for the table for n=10. It lists the possible outcomes {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. In the column labeled 0.25 (the binomial probability), find the probability of getting a "4."