Vegan Thanksgiving: Tofurkey is a vegan turkey substitute, usually made from tofu. At a certain restaurant, the number o
Posted: Wed Jul 06, 2022 12:16 pm
How many apps? According to a website, the mean number of apps on a smartphone in the United States is 93. Assume the number of apps is normally distributed with mean 93 and standard deviation 20.1 Part: 0/2 Part 1 of 2 (a) What proportion of phones have between 53 and 133 apps? Round the answer to four decimal places. The proportion of phones that have between 53 and 133 apps is
Watch your speed: Speeds of automobiles on a certain stretch of freeway at 11:00 PM. are normally distributed with mean 65 mph. Twenty percent of the cars are traveling at speeds between 60 and 65 mph. What percentage of the cars are going faster than 70 mph? The percentage of cars that are going faster than 70 mph is X 5
Commute to work: Megan drives to work each morning. Her commute time is normally distributed with mean 25 minutes and standard deviation 2 minutes. Her workday begins at 9:00 A.M. At what time should she leave for work so that the probability she is on time is 95%? Megan should leave for work at 7 A.M.