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According to a published report, 39% of couples met their partner online. In a group of...

According to a published report, 39% of couples met their partner online.

In a group of 150 randomly selected couples, what is the expected value and the standard deviation for the number of couples who met online? Round off your answers to one decimal place.

Math   Statistics-And-Probability   
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Answer #1

The problem is actually a real world application of the binomial distribution. Please go through the answer. Everything is given in a detailed manner.

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