The amount of calories consumed by customers at the Chinese buffet is normally distributed with mean 2778 and standard deviation 649. One randomly selected customer is observed to see how many calories X that customer consumes. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N(. , ) b. Find the probability that the customer consumes less than 2662 calories. c. What proportion of the customers consume over 3150 calories?
The amount of calories consumed by customers at the Chinese buffet is
a. What is the distribution of X? X ~ N(. , )
b. Find the
c. What proportion of the customers consume over 3150 calories?
d. The Piggy award will given out to the 1% of customers who consume the most calories. What is the fewest number of calories a person must consume to receive the Piggy award? calories. (Round to the nearest calorie)
The mean height of an adult giraffe is 18 feet. Suppose that the distribution is normally distributed with standard deviation 1 feet. Let X be the height of a randomly selected adult giraffe. Round all answers to 4 decimal places where possible.
a. What is the distribution of X? X ~ N(. , )
b. What is the
c. What is the Z-score for a giraffe that is 20 foot tall?
d. What is the probability that a randomly selected giraffe will be shorter than 18.8 feet tall?
e. What is the probability that a randomly selected giraffe will be between 18.5 and 19.3 feet tall?
f. The 90th percentile for the height of giraffes is? ft.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
