STA1501 ASSESSMENT 3 SEM 1 OF 2024 EXPECTED QUESTIONS AND ANSWERS

A research survey has reported that 25% of 18- to 29-year-olds in a city own a
tablet. Using the binomial distribution, what is the probability that in the next six
18- to 29-year-olds surveyed, four will own a tablet?



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, Past records indicated that the probability of online retail orders that turn out to be
fraudulent is 0.10. Suppose that on a given day out of 5 online retail orders the
number of fraudulent orders is distributed as a binomial random variable.
Calculate the probability that at least 2 online retail orders will turn out to be
fraudulent.



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