Compute the Mean and Standard Deviation of a Binomial Random

question 2

Multiple Choice

Compute the Mean and Standard Deviation of a Binomial Random Variable
-A recent survey found that 70% of all adults over 50 wear sunglasses for driving. In a random sample of 60 adults over 50, what is the mean and standard deviation of those that wear sunglasses

• A) mean: 42; standard deviation: 3.54964787
• B) mean: 42; standard deviation: 6.4807407
• C) mean: 18; standard deviation: 3.54964787
• D) mean: 18; standard deviation: 6.4807407

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