BACHELOR OF BUSINESS ADMINISTRATION

BUSINESS ADMINISTRATION

BUSINESS ANALYTICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The center of a normal curve is ____
A
equal to the standard deviation
B
the mean of the distribution
C
always a positive number
D
always equal to zero
Explanation: 

Detailed explanation-1: -The center of a normal curve is the mean of the distribution since it shows how the average values are distributed within a curve. The mean of distribution is the center of a normal curve as it has a probability of 50%.

Detailed explanation-2: -The middle point of a normal distribution is the point with the maximum distributions, which means that it possesses the most observations of the variable. The midpoint is also the point where these three measures fall. The measures are usually equal in a perfectly (normal) distribution.

Detailed explanation-3: -Answer and Explanation: The exact middle or center of a bell curve, if the data is distributed normally, is called the mean. The mean is the mathematical average. In a normal curve, the mean is also equal to the mode and the median of the data. The mode is the value which occurs the most often in the distribution.

Detailed explanation-4: -The middle of the range is also known as the mean of the distribution. The normal distribution is also known as a Gaussian distribution or probability bell curve. It is symmetric about the mean and indicates that values near the mean occur more frequently than the values that are farther away from the mean.

Detailed explanation-5: -In a normal distribution the mean is zero and the standard deviation is 1. It has zero skew and a kurtosis of 3. Normal distributions are symmetrical, but not all symmetrical distributions are normal. Many naturally-occurring phenomena tend to approximate the normal distribution.

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