I a Coin Is Tossed Four Times

question 105

Multiple Choice

i. A coin is tossed four times. The probability is ¼ or 0.25 that all four tosses will result in a head
Face up.
ii. A coin is tossed four times. The probability is 1/8 or 0.125 that all four tosses will result in a head
Face up.
iii. If two events are mutually exclusive, then P(A or B) = P(A) P(B) .

• 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:

Confirmation Bias

The inclination to seek out, understand, prefer, and remember data in a manner that supports one's already held beliefs or theories.

Law of Small Numbers

The erroneous belief that small samples will accurately represent the larger population from which they are drawn.

Law of Small Numbers

A cognitive bias that leads people to draw broad conclusions from small samples of data.

Confirmation Bias

The tendency to search for, interpret, favor, and recall information in a way that confirms one's preexisting beliefs or hypotheses.