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If X is a normal random variable with standard deviation 4.00 and if the probability that X is more than 5.52 is .1271 then what is the mean of X?
Wiki User
∙ 6y ago
The mean is 0.9592
Wiki User
∙ 6y ago
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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?
Approx 0.0027
Let X be a normal random variable with mean 10 and standard deviation of 5 What is the probability that X is greater than 12?
30 percent.
Why is the standard normal probability distribution unique?
a mean of 1 and any standard deviation
Suppose z has a standard normal distribution with a mean of 0 and a standard deviation of 1. the probability that z is less than 1.15 is?
probability is 43.3%
What is true of a standard normal probability distribution aA mean of 0 and a standard deviation of 1 b A mean of 1 and any standard deviation of 1 c Any mean and a standard deviatio?
a is true.
What is a normal random variable minus its mean and divided by its standard deviation?
It is the Standard normal variable.
What is Normal of Standard Normal Probability Distribution?
with mean of and standard deviation of 1.
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?
Approx 0.0027
What is Normal of probability distribution?
with mean and standard deviation . Once standardized, , the test statistic follows Standard Normal Probability Distribution.
Let X be a normal random variable with mean 10 and standard deviation of 5 What is the probability that X is greater than 12?
30 percent.
If x is a normal random variable with standard deviation is 2oo and if the probability tha x is more than 8.26 is .1271 then what is the mean of x?
3
Why is the standard normal probability distribution unique?
a mean of 1 and any standard deviation
What is the probability that a standard normal variable z is positive is?
It is 0.5
Define a normal random variable?
I have included two links. A normal random variable is a random variable whose associated probability distribution is the normal probability distribution. By definition, a random variable has to have an associated distribution. The normal distribution (probability density function) is defined by a mathematical formula with a mean and standard deviation as parameters. The normal distribution is ofter called a bell-shaped curve, because of its symmetrical shape. It is not the only symmetrical distribution. The two links should provide more information beyond this simple definition.
Suppose z has a standard normal distribution with a mean of 0 and a standard deviation of 1. the probability that z is less than 1.15 is?
probability is 43.3%
What is true of a standard normal probability distribution aA mean of 0 and a standard deviation of 1 b A mean of 1 and any standard deviation of 1 c Any mean and a standard deviatio?
a is true.
What is the standard deviation of a standard normal distribution?
The standard deviation in a standard normal distribution is 1.
