(I Simple Bar Charts May Be Constructed Either Horizontally or Vertically

question 15

Multiple Choice

(i. Simple bar charts may be constructed either horizontally or vertically. (ii) A frequency polygon is a very useful graphic technique when comparing two or more distributions
(iii) A cumulative frequency distribution is used when we want to determine how many observations lie above or below certain values.

• 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:

Binomial Probability

The probability of obtaining one of two outcomes (success or failure) in an experiment that is repeated multiple times under identical and independent conditions.

Discrete Random

Refers to a type of variable that can take only specific, separate values, often counted integers, within a defined set.

Distribution

Refers to the way values are spread or distributed over a range of possibilities.

Random Variable

A quantity whose value is subject to variations due to chance (statistical randomness).