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What is the probability that the value of a randomly selected variable from a normal distribution will be more than 3 standard deviation from its mean value?
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โ 9y ago
Approx 0.0027
Wiki User
โ 9y ago
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What is the probability that a randomly selected case from a normally distributed distribution will have a score between -1.00 and the mean?
The answer is 0.1586
What is the probability that one randomly-selected person in America will know another randomly-selected person in America?
There is not enough information about the the distribution of the number of people known by each individual - nor the averages. It is therefore no possible to give an answer any more precise than "the probability will be infinitesimally small".
What is non-probability sampling?
Non probability sampling is where the samples are not selected randomly.
What is the probability that a randomly selected person will be both over 50 and female?
The answer depends on the demography of the population from which the person is randomly selected.The answer depends on the demography of the population from which the person is randomly selected.The answer depends on the demography of the population from which the person is randomly selected.The answer depends on the demography of the population from which the person is randomly selected.
What is the probability that a randomly selected man between age 55 and 64 does not have this disease?
The answer will depend on what the disease is.
What is the probability that a randomly selected case from a normally distributed distribution will have a score between -1.00 and the mean?
The answer is 0.1586
What is the probability that one randomly-selected person in America will know another randomly-selected person in America?
There is not enough information about the the distribution of the number of people known by each individual - nor the averages. It is therefore no possible to give an answer any more precise than "the probability will be infinitesimally small".
What is non-probability sampling?
Non probability sampling is where the samples are not selected randomly.
A final exam in Math 160 has a mean of 73 with standard deviation 7.8 If 24 students are randomly selected find the probability that the mean of their test scores is less than 70?
0.9699
What is the probability the random variable will assume a value between 40 and 60?
It depends on what the random variable is, what its domain is, what its probability distribution function is. The probability that a randomly selected random variable has a value between 40 and 60 is probably quite close to zero.
What is the probability that a randomly selected person will be both over 50 and female?
The answer depends on the demography of the population from which the person is randomly selected.The answer depends on the demography of the population from which the person is randomly selected.The answer depends on the demography of the population from which the person is randomly selected.The answer depends on the demography of the population from which the person is randomly selected.
What is the probability that a randomly selected date in one year is not in the month of December and januray?
10/12
What is the probability that a randomly selected man between age 55 and 64 does not have this disease?
The answer will depend on what the disease is.
If a point is randomly selected from the colored area of the graph what is the probability that it will NOT be in the red region?
15 19
You randomly select 500 students and observe that 85 of them smoke Estimate the probability that a randomly selected student smokes?
85/500 = 17%
A normal distribution has a mean of ยต = 50 with ฯ = 10. What proportion of the scores in this distribution are greater than X = 65?
Scores on the SAT form a normal distribution with a mean of ยต = 500 with ฯ = 100. What is the probability that a randomly selected college applicant will have a score greater than 640? โ
The probability of a person getting a cold is .7 What is the probability that 4 people if selected randomly will get a cold?
If the events can be considered independent then the probability is (0.7)4 = 0.24 approx.
