Question

A box contains cards that are numbered from 1 to 100. What is the probability of randomly selecting a number that is less than 12?

Answer 1

less than 12: 11 numbers
probability of getting less than 12: 11/100

Answer 2

`P=(11)/(100)`

Explanation:

we know that

The probability of an event is the ratio of the size of the event space to the size of the sample space.

The size of the sample space is the total number of possible outcomes

The event space is the number of outcomes in the event you are interested in.

Let

x---------> size of the event space

y-------> size of the sample space

`P=(x)/(y)`

In this problem we have

`x=11` (because only
`11` cards are less than
`12`)

`y=100` (total cards)

substitute

`P=(11)/(100)`