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Define the binomial random variable in question

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Reference no: EM132581564

It is reported that 45% of Canadians do online banking. A random sample of 20 Canadians across the country was drawn to investigate this.

a) Identify the "trial" here. Are trials independent of each other? Briefly explain in the context of the question.

b) Suppose the above situation satisfies all four requirements of a Binomial experiment. Define the Binomial random variable in this question. How many possible values does it have?

c) Find the mean of the Binomial random variable and provide an interpretation of this value in the context of the question.

d) What is the probability that at least 4 but less than 8 Canadians do online banking in this sample?

Reference no: EM132581564

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