Q13 of 66 Page 15

The probability that a number selected at random from the number 1, 2, 3, ....., 15 is a multiple of 4 is[CBSE 2014]

Total numbers of elementary event are 15


Let E be the event of selecting a multiple of 4


Favourable outcomes are: 4, 8, 12,


Numbers of favourable outcomes are 3


P (E) = 3/15 = 1/5

More from this chapter

All 66 →
11

Two dice are thrown together. The probability of getting a doublet is[CBSE 2013]

 12

A number is selected at random from the numbers 1 to 30. What is the probability that the selected number is a prime number?[CBSE 2014]

 14

One ticket is drawn at random from a big containing tickets numbered 1 to 40. The probability that the selected ticket has a number, which is a multiple of 7, is[CBSE 2013]

 15

One ticket is drawn at random from a big containing tickets numbered 1 to 40. The probability that the selected ticket has a number, which is a multiple of 7, is[CBSE 2013]