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LetXbe the number of people who would buy the product, and assume we have a random sample of 20 people and assume within the whole

LetXbe the number of people who would buy the product, and assume we have a random sample of 20 people and assume within the whole population that 40% of people would buy the product, ieXBin(20,0.4).

What is the probability that 7 or more people out of the sample say they would buy the product?

Where there is a random sample of 20 people and 40% of the whole population would buy the product.

X - Bin(20,0.4)

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