Question

Cards marked with numbers 5-75 are placed in a box ans mixed thoroughly.One card is drawn from the box .Find the probability that the number on the card is odd. (Please explain why there are 71 cards from 5-75?)

Answer 1

75-5)+1= no of cards
p(e)=72/2
36

36/72
1/2 is the probability

Answer 2

Step-by-step explanation:

Total outcomes=75-5+1=71

(+1 is because we also have to include 5. By simple example if there are cards marked with numbers 1,2,3 then we know that there are total 3 cards, but if u subtract 3-1 then according to it u will get 2 cards only so by adding 1 u will get the exact total no. of cards.

Note: this bracket is just for explanation so no need to write it)

Favourable outcomes=36 (including 5& 75)

Let p(e) be the probability of an event for the no. on the card is odd.

p(e)= no. of favourable outcomes/total outcomes

p(e)=36/71

Therefore, the answer is 36/71