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Find the probability distribution of the value x . mean variance and standard derivation.
1. A company uniformly receives 20 phone calls from 9am -7 pm What is the probability that the number of calls between 12 :00 and 1:00 will be:
a. 1?
b. at least 1?
c. more than 1?
Let x be uniformly distributed on [-1,3]
Find 1. P( 1 < x < 2)=
2. P (-1/2 < x < 4) =
3. P ( 0 < x < 5 )=
4. P (-2 < x < 3 ) =
the effect of exercise and diet on body weight is being studied. researchers at a major university have a list of 2500
the american veterinary association claims that the annual cost of medical care for dogs averages 100 with a standard
Find the moment generating function of their sum and identify the corresponding distribution, its mean and its variance.
rolling a fair twelve-sided die produces a uniformly distributed set of numbers between 1 and 12 with a mean of 6.5 and
a pharmaceutical company recieves large shipments of aspirin tablets. the acceptance smapling plan is to randomly
The number of phone calls coming into a switchboard in the next five minutes will either be 0, 1, or 2. The probabilities are the same for each of these (1/3).
Find the probability that the average of those counts is more than 63.0 mosquitos per square meter. Assume that the variable is normally distributed.
Question 1: A study was conducted to estimate μ, the mean number of weekly hours that U.S. adults use computers at home. Suppose a random sample of 81 U.S. adults gives a mean weekly computer usage time of 8.5 hours and that from prior studies, th..
The thickness of metal plates made by a particular machine are normally distributed with mean of 4.3 mm and standard deviation of .0.12 mm. What is the value of c for which there is 80% probability that a metal plate has a thickness with in the in..
here are the golf scores again of 12 members of a college womens golf team in two rounds of tournament play. a golf
1. nbspif the mean number of hours of television watched by teenagers per week is 12 with a standard deviation of 2
Find the probability that the surgury is successful for fewer than six patients
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