Question

18.Find the probability of a selected number is a multiple of 4 from the numbers 1, 2, 3, 4, 5, …15. *

a. 1/5

b. 1/3

c. 4/12

d. 2/15​

Answer 1

Finding the probability of a selected number is a multiple of 4 from the numbers 1, 2, 3, 4, 5, …15

Explanation:  

• Given  that the numbers are 1,2,3,4,5,6,7,8,9,10,11,12,13,14 and 15.
• Probability of occurrence of an event=Number of favourable outcomes/Total number of possible outcomes.
• From the given 15 numbers, the numbers that are multiple of 4 are 4,8 and 12.
• Number of favourable outcomes = 3, Total no. of possible outcomes = 15.

• P(A) = 3/15 = 1/5.
• 1/5 is the probability that a number selected from the numbers 1,2,3, ……,15 is a multiple of 4.