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A random variable X takes values between 0 and 4 with cumulative distribution function: F(x) = x2/16 for 0 ? x ? 4.
What is the median of X?
Consumption of Saturated Fat: A nutritionist claims that the proportion of females who consume too much saturated fat is lower than the proportion of males who consume too much saturated fat.
Let X be the random variable which denotes the number of saves that are made by the lacrosse goalie. Find the expected value and standard deviation of the random variable.
a survey of 1305 people who took trips revealed that 96 of them included a visit to a theme park. based on those survey
No children that is equal to the value obtained by the census. Give the z statistic (rounded to two decimal places) and the P-value. What do you conclude?
A Statistic professsor plans classes so carefully that the lenths of her classes are uniformly distributed between 46.0 and 56.0 minutes. Find the probability that a given class runs less than 51.5 minutes. Find the probability of selecting a clas..
A soft drink bottling machine is set to dispense soft drink into containers labeled 16 ounces. While the actual quantities vary they are normally distributed with a mean of 16.1 ounces and a standard deviation of 0.015 ounces.
FINRA is considering three alternatives for providing food services (breakfast and lunch) to its employees: creating a company owned food service and hiring its own staff, hiring an outside vendor to provide food services (outsourcing), or a combi..
1.an experiment tests the effects of new devices to help stop smoking. they tested hypnosis nicotine gum nicotine patch
Your manager, who just read an abridged version of a statistics book, wants you to test hypotheses for the difference in two population means.
Otherwise, no ordering will take place. Find the steady-state probabilities of the state of this Markov chain?
Using standard methods for linear statistical prediction, find the percent increase in sales revenue that would be expected if the price were lowered by 15%. Find the usual measure of the strength of association between price reduction and sales re..
an elementary school class ran 1 mile in an average of 11 minutes with a standard deviation of 3 minutes. rachel a
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