Mathematics, 30.05.2020 17:59 alailatrenee18541
Cost of unleaded fuel. According to the American Automobile Association (AAA), the average cost of a gal- lon of regular unleaded fuel at gas stations in May 2014 was $3.65 (AAA Fuel Gauge Report). Assume that the standard deviation of such costs is $.15. Suppose that a ran- dom sample of n = 100 gas stations is selected from the population and the cost per gallon of regular unleaded fuel is determined for each. Consider x, the sample mean cost per gallon. a. Calculate m x and sx. b. What is the approximate probability that the sample has a mean fuel cost between $3.65 and $3.67? c. What is the approximate probability that the sample has a mean fuel cost that exceeds $3.67? d. How would the sampling distribution of x change if the sample size n were doubled from 100 to 200? How do your answers to parts b and c change when the sample size is doubled?
Answer from: Quest
because its not ur topic and its not for is for homework not that.
Answer from: Quest
grab rope, tie a loop-de-loop, put it around ur neck, now jump while its tied to a high place. now your shoes are cool.
step-by-step explanation:
Answer from: Quest
the answer is 48m^2!
step-by-step explanation:
Answer from: Quest
answer is 8x+24
area of vanessa's patio = length × width
given, length = (3x² + 5x + 10)
width = (x² - 3x - 1)
area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)
= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)
= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10
= 3x⁴ - 4x³ - 8x² - 35x - 10
hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)
Mathematics, 21.06.2019 16:30, chloesmolinski0909
Solve the equation w^3 = 1,000 i honestly dont know how to punch this into a calculator pls
Answers: 1
Mathematics, 21.06.2019 19:30, Tcareyoliver
If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b
Answers: 1
Cost of unleaded fuel. According to the American Automobile Association (AAA), the average cost of a...
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