The leading brand of dishwasher detergent has a 30% market share. A sample of 25 dishwasher detergent

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The leading brand of dishwasher detergent has a 30% market share. A sample of 25 dishwasher detergent customers was taken.

a. What is the probability that 10 or fewer customers chose the leading brand?

b. What is the probability that 11 or more customers chose the leading brand?

c. What is the probability that 10 customers chose the leading brand?

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