Joseph kept 26 cards in a cap, bearing one English letter on each card. Onr card is drawn at random. What is the probability that the card drawn is a vowel card ?

Answer

`(5)/(26).`

Explanation

There 26 cards each bearing one English letter.
`thereforeS={a,b,c,...,y,z}`
`thereforen(S)=26`
Let A be the event that the card drawn is a vowel card.
There are 5 vowel cards a,e,I,o,u.
`thereforeA={a,e,i,o,u}`
`thereforen(A)=5.`
`P(A)=(n(A))/(n(S))=(5)/(26).`