Question

A number x is chosen at random from the numbers -4,-3,-2,-1,0,1,2,3,4,5 the probability that x is less than 3

Answer 1

Answer:

Total numbers= 10

Number of favourable outcomes=7

P(x is a number less then 3)= Number of favourable outcomes/Total numbers

P(x is a number less then 3)=7/10

Answer 2

Given: A number x is chosen at random from the numbers -4,-3,-2,-1,0,1,2,3,4 and 5.

To find: Probability that x is less than 3

Solution: The given numbers are -4,-3,-2,-1,0,1,2,3,4 and 5.

The number x is selected from these numbers.

Total number of given numbers=10

Numbers which are less than 3 among the given 10 numbers:

-4,-3,-2,-1,0,1 and 2.

Total number of such numbers=7

Probability that x is less than 3

= Total numbers less than 3 / Total given numbers

=7/10

= 0.7

Therefore, the probability that the selected number x is less than 3 is 0.7 .