Consider the following data corresponding to some Uber trip costs (in dollars) in Ottawa area taken at different rates: 21,15,12,8,48,11,10
a) Compute x, the mean trip cost, and s the standard deviation, and find the median trip cost. Show all work
b) Compute the z-score for the trip cost $48. Would you consider this value as an outlier ? Why or why not? show all work
3) Salaries at a large online shopping company averaged last year $85,000, with a standard deviation of $9,000. Assuming salaries distribution is quite bell-shaped, about 95% of last year’salaries lie within what limits? show all your work
4) Identify each of the following variables as categorical, discrete, or continuous. Use space left after each question.
(a) The sodium daily intake of a randomly selected person————————.
(b) The Number of calls per minute to a hotline center———————.
(c) The brand of the next car arriving at an oil change center for service———————-.
(d) The weekly average occupancy rate at a chain hotel in Southern Ontario—————.
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