A school survey found that 4 out of 10 students like
pizza. If three students are chosen at random with replacement, what is the
probability that all three students like pizza?
Solution
THIS IS AN INDEPENDENT
EVENT. THE 1ST CHOICE HAS NO ANY EFECT FOR THE 2ND OR 3RD.
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Hence probability that all three
students like pizza is 8/125 .
TRY THIS………..
A school survey found that 3 out of 5 students like
coffee. If three students are chosen at random with replacement, what is the
probability that all three students like coffee?
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