Question

HURRRYYYYYYY

A standard number cube with the numbers 1 through 6 is rolled. Find the probability of rolling a number less than 4.



A).1/4


B).1/3


C).1/2


D).2/3

Answer 1

(C) ¹/₂

Explanation:

Given;

A standard number cube with the numbers 1 through 6 = 1, 2, 3, 4, 5, 6

The probability of rolling a number less than 4 = 3, 2, 1

The probability of rolling 3, P(3) = ¹/₆

The probability of rolling 2, P(2) = ¹/₆

The probability of rolling 1, P(1) = ¹/₆

Probability of rolling a number less than = P(3) or P(2) or P(1)

= ¹/₆ + ¹/₆ + ¹/₆

= ³/₆

= ¹/₂

Therefore, the probability of rolling a number less than 4 is ¹/₂

Option (C) ¹/₂