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Fuel Consumption and Cars The Fiat 500E is an electric car that can travel approximately 80-100 miles on a full charge.26 The time it takes to fully recharge depends on the percent depleted, but is approximately normal with mean 2.2 hours and standard deviation 0.6 hour (on a 240-volt line). Suppose a random Fiat 500E is recharged.a. What is the probability that the amount of time to fully recharge is between 1 and 2 hours?b. What is the probability that the amount of time to fully recharge is more than 3 hours?c. If the amount of time to fully recharge is less than 30 minutes, the car could still travel another 50 miles. What is the probability that the car could travel another 50 miles?d. Suppose three Fiat 500E's are selected at random. What is the probability that all three will have a time to fully recharge greater than 2.5 hours?
Describe the shape of the dataset. Explain whether it is symmetric or skewed.- Are there any outliers? For any outlier, give an approximate value for the amount of sleep, and explain why you think the value is an outlier.
in the u.s. it is estimated that an average person makes 4 visits a year to the doctors office.a what is the mean and
assume that adults have iq scores that are normally distributed with a mean of 100 and a standard deviation of 15. find
This problem relates to Basic Statistics and discusses about the importance of reliable data for both quantitative and qualitative research techniques
Five dice are rolled. U is the event that the dice total at least 28. K is the event that the dice total no more than 7.
A national survey of restaurant employees found that 75% said work stress had a negative impact on their personal lives. A sample of 100 employees from a popular restaurant chain finds that 68 answer
For sale. In the real-estate ads described in Exercise 1, 64% of homes for sale have garages, 21% have swimming pools, and 17% have both features.
Consider a domain where the word coffee can refer to the following concepts in a knowledge-base: a caffeinated or decaffeinated beverage, ground coffee used.
Find a formula for P, assuming: (a) premiums are returned without interest; (b) premiums are returned with interest.
A bag has 5 green marbles and 10 brown marbles. Half of the brown marbles are made of plastic. A marble is selected at random from the bag. What is the probability that it is a brown, plastic marble
Briefly describe how the standard deviation influences the outcome of the hypothesis test. How does standard deviation influence measures of effect size?
Suppose that in a gambling game, the probability of winning $4 is .3 and the probability of losing $2 is .7.
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