Question

1. which formula represents the basic probability calculation?

a. ( p = a + b )
b. ( p = 1/2baseheight )
c. ( p = total outcomes - unfavorable outcomes )
d. ( p = number of favorable outcomes / total number of outcomes )

Explanation:

The basic probability formula is based on the ratio of favorable outcomes to total outcomes. Option a is an addition formula (not probability - related). Option b is the formula for the area of a triangle. Option c is an incorrect subtraction - based formula for probability. Option d correctly represents the basic probability calculation as \(P=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}\).

Answer:

d. \(P = \text{Number of favorable outcomes }/\text{ Total number of outcomes}\)