(I If the Mean of a Frequency Distribution Is Smaller

question 194

Multiple Choice

(i. If the mean of a frequency distribution is smaller than the median and mode, the Pearson's
Coefficient of skewness would be negative.
(ii. The only time the variance equals the standard deviation is when both equal 1.
(iii) According to the Empirical Rule, 90 percent of the observations lie within plus and minus one
Standard deviation of the mean.

• A) (i), (ii) and (iii) are all correct statements
• B) (i) and (ii) are correct statements but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements, but not (i).
• E) (i), (ii) and (iii) are all false statements.

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Definitions:

Sound Waves

Sounds that move through the air or other substances and become audible when they arrive at the ear of a human or animal.

High-frequency

Refers to a characteristic or phenomenon occurring at a rapid rate within a short time period, often used in the context of signals, trading, or waves.

Age

A measure of the length of time that an organism has been alive or a thing has existed.

Sensitivity

The capacity to perceive and respond to changes or stimuli in the environment or one's internal state.