The average daily rate of a hotel in Canada as of August 2018 was $172.85. Assume the average daily rate follows a normal distribution with a standard deviation of $26.60. Standard Normal Distribution Table a. What is the probability that the average daily rate of a Canadian hotel will be: (i) less than $175 P(X<175) = (ii) more than $210 0.516

Customers at a popular restaurant spend on average $32.30 per person. Assume that the amount spent follows approximately a normal distribution with a standard deviation of $5.25. What is the probability that a randomly selected customer will spend more than $40.00? • Below what cost do the 20% of customers paying the least spend?

IQ test scores are standardized to proceed a normal distribution with the mean of u =100 and a standard  deviation of 0 = 15. Find the proportion of the population in each of the following IQ categories. a. Genius or new genius IQ greater than 140 b. Very Superior intelligence IQ between 120 and 40 c. Average or normal intelligence IQ between 90 and 109

The time between arrivals of vehicles at a particular intersection follows an exponential probability distribution with a mean of 12 seconds. A. IN EXCEL sketch this exponential distribution, and Standard deviation. B. IN EXCEL What is the probability that the arrival time between vehicles is 12 seconds or less. C. IN EXCEL What is the probability that the arrival time between vehicles is 6 seconds or less.

Boston, Massachusetts, averages 211.7 sunny days per year. Assume that the number of sunny days  follows a normal distribution with a standard deviation of 20 days.   20 What is the probability that Boston has less than  200 sunny days in a given year? a 0.2394                 b 0.2520                 c 0.2653                 d 0.2793

The average annual salary for all U.S. teachers is 47,750. Assume that the distribution is normal and the standard deviation is $5,680. find the probability that a ramdmly selected teacher earns a. between 35,000 and 45,000 a year b. more than $40,000 a year

A normal distribution has a mean of 85.6 and a standard deviation of 4.83. Find the data value corresponding to the value of z given. (Enter your answer to four decimal places.) z = 0.75