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The amount of gasoline sold daily at a service station is a value of x of a random variable X that is approximately uniformly distributed with a minimum of 2000 gallons and a max of 5000 gallons.
Determine the probability that daily sales will fall between 2500 and 3000 gallons.
Find the probability that a randomly selected bolt can be used (either immediately or after being cut). Find the probability that fewer than 15 out of 20 bolts can be used.
A random sample of n=31 households is asked the number of TV sets in the household. The responses are-What is the mean number of TVs?
Construct a payoff table for Mountain Ski's decision problem of how many pairs of skis to order. What is the best decision from an expected value basis?
During the gestation period of 28 weeks, what percent of the babies born within each gestation period have a low birth weight (under 5.5 lbs)?
It was found that the correlation is about .80 and the regression equation is handspan = 3 + 0.35 height What is the predicted handspan for someone 5 feet tall?
Compute the 90% confidence interval about m if the sample size, n, is 55. How does does increasing the sample size affect the margin of error, E?
The January 17, 1994 issue of Time magazine reported that 58% of adult Americans said yes to the question "If you or your spouse were pregnant, would you want the unborn child tested for genetic defects?"
Draw a box-and-whisker plot for the data set. Find the variance and the standard deviation. please help me as soon as possible please!!! thank you
joint pmf p(X1,X2)=(X1+2X2)/18, (x1,x2)=(1,1),(1,2),(2,1),(2,2), zero elsewhere. Determine the conditional mean and variance of X2, given X1=x1, for x1=1 or 2. Also compute E(3X1-2X2).
a teacher gave a reading test to a class of 5th grade students and computed the mean median and mode for the test
Determine probability that student was sophomore? Determine the probability of selecting a face card from deck of 52 cards.
a farmer wishes to determine the optimal level of a new fertilizer on his soybeancrop. some factors that affect crop
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