(I If the Mean of a Frequency Distribution Is Smaller

question 168

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, 99 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:

Nitrogenous Rings

Structures found in organic compounds where nitrogen atoms are part of a cyclic arrangement.

Genetic Changes

Alterations in the DNA sequence of an organism, which can lead to variations in physical traits and behaviors.

Metabolic Enzymes

Proteins that act as catalysts in the biochemical reactions of metabolism, speeding up chemical processes in the cells.

Neurospora

A genus of fungi used extensively as a model organism in molecular and genetic research, notably in the study of biological clocks and circadian rhythms.