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Let a random variable x represent the number of heads when a fair coin is tossed three times. (SHOW WORK PLEASE)
x P(x)
0 0.125
1 0.375
2 0.375
3 0.125
Determine the mean and standard deviation of x. (Round the answer to two decimal places.)
Find the height such that about 25% of college women are shorter than that height. What is the percentile ranking for that height?
Assuming that the Styrofoam absorbs a negligibly small amount of heat and that no heat was lost to the surroundings, what is the specific heat capacity of the metal?
a newspaper finds that the mean number of typographical errors per page is four. find the probability that more than
Given are the numbers of times the machine was used over each of the last 30 days. Find out the mean number of times the machine was used per day.
In a culinary school of 750 students, soups and salad are the most popular classes. In the salad classes there are 300 students and 30 of those students
The following is based on the normal distribution of scores with mean equal to 90 and standard deviation equal to 3.5. Determine the probability of a score falling between a raw score of 84 and 96?
A brand name has 60% recognition rate. if the owner of the brand wants to verify that rate by beginning with a small sample of 5 randomly selected consumers, find the probability that exactly 3 of the 5 consumers recognize the brand name. Also fin..
the accompanying data are x advertising share and y market share for a particular brand of cigarettes during 10
significance testing. t-tests1. in the course of the thesis work a student develops a new approach for the solution of
The number of days (X) after mailout it takes a utility company to receive payment for a customer's bill is a normal random variable with a mean of 31 days.
The time spent by a factory worker A packing a box is a random variable with mean 3.5 minutes and standard deviation 1 minute. The times spent packing any two boxes are independent.
Every time you have your cholesterol measured, the measurement may be slightly different due to random fluctuations and measurement error.
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