The highway fuel economy of a 2016 Lexus RX 350 FWD 6-cylinder 3.5-L automatic 5-speed using premium fuel is a normally distributed random variable with a mean of μ = 21.00 mpg and a standard deviation of a = 3.25 mpg. (a) What is the standard error of X, the mean from a random sample of 16 fill-ups by one driver? (Round your answer to 4 decimal places.) Standard error of X (b) Within what interval would you expect the sample mean to fall, with 90 percent probability? (Round your answers to 4 decimal places.) The interval is from to

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A: Answer:   Yes

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A: The odds against an event are 4 to 9.

Q: " " " " 9 9 20 20 25 20 20 25 30 35 40 50 0

A: month  sales Jan-19 10 Feb-19 15 Mar-19 20 Apr-19 20 May-19 25 Jun-19 20 Jul-19 20…

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Q: Q3: Choose the correct answer Let X-F (4,8), then 3. The probability density function of X is

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A: From the provided data areΣx=40.42Σx2=178.9356n=10The mean is x¯=Σxn=40.4210=4.042standard deviation…

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