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Chapter 7: Q.72 (page 432)

72. Which of the following is NOT TRUE about the theoretical distribution of sums?

a. The mean, median and mode are equal.

b. The area under the curve is one.

c. The curve never touches the x-axis.

d. The curve is skewed to the right.

Short Answer

Expert verified

d. The curve skewed to the right is not true.

Step by step solution

01

Given Information

Frequently in measurements, we will generally address a bunch of information by delegate esteem which would roughly characterize the whole assortment. This delegate esteem is known as the proportion of focal propensity, and the name proposes that it is a worth around which the information is focused. These focal propensities are mean, median and mode.

02

Explanation 

The central limit theorem states that as far as possible hypothesis spreads out free sporadic elements are summed up, their properly normalized complete slopes toward a run of the mill course whether or not the principal factors themselves are not consistently conveyed.

Hence the curve skewed to the right is not true.

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Most popular questions from this chapter

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Yoonie is a personnel manager in a large corporation. Each month she must review 16of the employees. From past experience, she has found that the reviews take her approximately four hours each to do with a population standard deviation of 1.2hours. Let 围 be the random variable representing the time it takes her to complete one review. Assume 围 is normally distributed. Let x-be the random variable representing the meantime to complete the 16reviews. Assume that the 16 reviews represent a random set of reviews.

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