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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?
Wiki User
∙ 15y ago
30 percent.
Wiki User
∙ 15y ago
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Why does a Uniform distribution have a greater standard deviation?
The answer depends on greater standard deviation that WHAT!
What is the probability that z (the standard normal distribution variable) is greater than 1?
It is 0.1587
Can the mean be less than the standard deviation?
In general, a mean can be greater or less than the standard deviation.
What are all the values a standard deviation can take?
The standard deviation must be greater than or equal to zero.
What is the The approximate probability of a value occurring that is greater than one standard deviation?
The answer depends on the underlying distribution. For example, if you have a random variable X, with a symmetric distribution with mean = 20 and sd = 1, then prob(X > 1) = 1, to at least 10 decimal places.
Why does a Uniform distribution have a greater standard deviation?
The answer depends on greater standard deviation that WHAT!
What is the probability that z (the standard normal distribution variable) is greater than 1?
It is 0.1587
Can standard deviation be greater than mean?
Standard deviation can be greater than the mean.
What does it indicate if the mean is greater than the standard deviation?
It does not indicate anything if the mean is greater than the standard deviation.
Assume that X has a normal distribution with mean equals 15.2 and standard deviation equals 0.9 What is the probability that X is greater than 16.1?
0.8413
Can the mean be less than the standard deviation?
In general, a mean can be greater or less than the standard deviation.
What are all the values a standard deviation can take?
The standard deviation must be greater than or equal to zero.
What is the The approximate probability of a value occurring that is greater than one standard deviation?
The answer depends on the underlying distribution. For example, if you have a random variable X, with a symmetric distribution with mean = 20 and sd = 1, then prob(X > 1) = 1, to at least 10 decimal places.
Is the higher the standard deviation the greater the variation?
Yes. Since the standard deviation is defined as the square root of the variance, it can be said that the higher the standard deviation, the higher the variance.
What does standard deviation tell about distribution and varity?
It is a measure of the spread of the distribution. The greater the standard deviation the more variety there is in the observations.
How do you calculate mean and Median smaller then Standard deviation?
In the same way that you calculate mean and median that are greater than the standard deviation!
Is the mean for a set of data always greater than the standard deviation?
Yes; the standard deviation is the square root of the mean, so it will always be larger.
