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If the tails of the normal distribution curve are infinitely long. Is it True or False that the total area under the curve is also infinite?
Wiki User
∙ 14y ago
False. A normalized distribution curve (do not confuse normalized with normal), by definition, has an area under the curve of exactly 1. That is because the probability of all possible events is also always exactly 1. The shape of the curve does not matter.
Wiki User
∙ 14y ago
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false
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false
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True. You can find many references including wikipedia on the Normal distribution on the internet.
Is the middle spread that is the middle 50 percent of the normal distribution is equal to one standard deviation?
false
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a ray only goes in one direction which is either left, right, up, or down
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symmetrical :)i do believe!hope this helps!Pixiex
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true
A ray extends infinitely in both directions true or false?
False
A ray has an infinite number of endpoints true or false?
false
The F-distribution is symetrical around mean zero True or False?
The F-distribution is either zero or positive, so there are no negative values for F. This feature of the F-distribution is similar to the chi-square distribution. The F-distribution is skewed to the right. Thus this probability distribution is nonsymmetrical.
Is it true or false that The area under a normal distribution curve is always positive even if the z value is negative?
It is true. Because the normal distribution is above the horizontal axis for all values, the area under it is a positive quantity no matter the z value.
A ray has an infinite number of endpoints.?
FALSE.$
True or False A sampling distribution is a probability distribution for a statistic?
The statement is true that a sampling distribution is a probability distribution for a statistic.
