QUESTION 10 Which of these are properties of the standard normal curve? Check al

Question

QUESTION 10 Which of these are properties of the standard normal curve? Check all that applies. The total area under the standard normal curve is The standard normal curve extends indefinitely in both directions, approaching, but never touching, the horizontal axis as it does so. The standard normal curve is symmetric about 0 Almost all the area under the standard normal curve lies between-3 and 3. The mean and the standard deviation of the standard normal curve is 0 and 1 respectively. QUESTION 11 A variable is said to be a normally distributed variable or to have a normal distribution if its distribution has the shape of a normal curve.

Explanation / Answer

10) Properties of the normal distribution.

The total area under the standard normal curve is 1.

The standard normal curve extends indefinitely in both directions approaching, never touching, the horizontal axis as it does so.

The standard normal curve is symmetric about 0.

The mean and standard deviation of the standard normal curve is 0 and 1 respectively.

11) Yes given statement is true, because the shape of the normal curve means it is bell shape and it is a normal distribution.

True.  

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