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If we roll a pair of fair 6 sided die, let Y denote the difference between the two outcomes on the two different dice. Construct the probability distribution of Y and compute its expected value.
If we roll a pair of fair 6 sided die, let Z denote the max (largest) of the outcomes on the two dice. Construct the probability distribution of Z and compute its expected value.
find the area under the standard normal curve between z 0 and z 2.34. round the answer to 4 decimal
Repeating this experiment many times with different samples, what values for the sample means would be possible? What values would repeat more often?
What is the probability that 30% or fewer male employees will indicate that they have to pick up the slack for mom's working flextime ?
Averaging 204 pins with a standard deviation of 24.9, can one conclude at a level of significance of .01 that the new ball has improved his game?
The mean number of flaws per 100 m of material produced on a certain machine at Blanktown Fabrics is 2. If flaws occur randomly, find the probability that in 50 m of material there will be less than 2 flaws.
Consider the following situation describing layoffs at a manufacturing plant of the Monsanto Company. Does there appear to be a case of age discrimination between those laid off and those non-laid off?
If there are 75 baskets of tomatoes available to be sold at the roadside stand at the beginning of a day, what is the probability that they will all be sold by the end of the day?
What is the population mean? What is the best estimate of that value?
Standard deviation of 6.9 centimeters.assuming that the heights are recorded to the nearest half-cm, how many of these students would you expect to have heights less than 160.0 centimeters.
At a = 0.01, can it be concluded that the variance of the areas for counties in Indiana is less than the variance of the areas for counties in Iowa?
What is the probability that exactly 7 cabinets are defective? What is the probability that there are more than 8 defective file cabinets?
A company sampled 40 of the springs that it manufactures for use in small engines and discovered that 20% of the springs did not meet specifications.
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