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During the 2005 Major League Baseball season, Derrek Lee had a 0.335 batting average. Construct a binomial probability distribution for the number of successes (hits) for four official at bats during this season.
What is the probability of this project being completed earlier than 19 days?
Suppose you roll a standard die 2000 times and let X be the sum of the values you get. Using the Central Limit Theorem, for what value of a is P[X >= a] approximately equal to P[N(0,1) >= 2] ?
The number of cell phone minutes used by high school seniors follows a normal distribution with a mean of 500 and a standard deviation of 50. What is the probability that a student uses fewer than 400 minutes?
an april 2004 article stated that americans have an average of 2.11 televisions per household. if the standard
perform a sensitivity analysis on the following datapossible rampd costs for a phone company are best 20000 with a
suppose that a category of world class runners are known to run a marathon 26 miles in an average of 142 minutes with a
Assume that the density of states is the same in the conduction band (C8) and m the valence band ( V8). Then, the probability that a state is filled at the conduction band edge (Ee) is equal to the probability that a state 1s empty in the valence..
The maximum likelihood estimate for D is the number of defectives which gives the highest probability for obtaining the number of defectives observed in the sample. Guess this number D and then write a computer program to verify your guess.
A machine produces 3 inch nails. A sample of 100 nails is selected, and it is found that 25 are shorter than 3 inches. Find the 95% confidence interval on the proportion of all such nails that are shorter than 3 inches.
The professor wishes to use a random-number table to determine which letter choice should correspond to the correct answer for a question.
Step 1: Find the expected value E(X). Step 2: Find the standard deviation.
in a recent study on gender differences in education a sample of 7 boys had a mean score of 18.8 and a standard
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