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The mean gas mileage for a hybrid car is 56 miles per gallon. Suppose that the gasoline mileage is approximately normally distributed with a standard deviation of 3.3 miles per gallon. a) what is the probability that a randomly selected hybrd gets more than 62 miles per gallon? b) what is the probability that a randomly selected hybrid gets 50 miles per gallon or less? c) what is the probability that a randomly selected hybrid gets between 58 and 62 miles per gallon? d) what is the probability that a randomly selected hybrid gets less than 46 miles per gallon?
The probability that a randomly selected hybrid gets more than 62 miles per gallon is ___.
The probability that a randomly selected hybrid gets more than 50 miles per gallon is ___.
The probability that a randomly selected hybrid gets between 58- 62 miles per gallon is ___.
The probability that a randomly selected hybrid gets more than 46 miles per gallon is ___.
At most times the metrics are low but they rise drastically when a child feels stress. The researcher wants to estimate a baseline level for the metrics.
if z is a standard normal random variable compute the following probabilities by standardizing.1. what is p-2ltzlt1.82.
Determine the coefficient of correlation and the coefficient of determination. please show your calculations. Interpret the results.
A data set of ordered pairs with a negative linear correlation has a coefficient of determination of 85.2%. What is the linear correlation coefficient?
What is the probability that a carpet that is 8 metres by 10 metres contains no flaws? Use an appropriate Excel function and write down the formula shown in the formula bar.
A sample of 3000 observations has a mean of 85 and a standard deviation of 10. The distribution is bell-shaped. Using the empirical rule, find what percentage of the observations fall in the intervals
When combining probabilities, to find the probability of one event AND another event, the separate probabilities should be:
20 students in a class - if there is a 15% probability that a randomly chosen member has seen a particular movie - what is the expected number of students have seen the movie?
the median property tax rate per 1 000 value for state a is 21 .42. a family is considering moving to state b and
Batch has just been completed. Determine probability that first three units manufactured in this batch will contain at least total of 4 defects?
1. other things being equal as the sample size increases the standard error of a statistica. increasesb.
price scanners at o-mart are supposed to produce no more than 2 errors. is this under-stated? we randomly sample n1000
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