Q2 of 98 Page 686

A coin is tossed once. What is the probability of getting a tail?

P(E) = number of favourable outcome /total number of outcome.


When a coin is tossed, the possible outcomes are:


P(E) = { H, T}


So, P(T), the probability of getting tail is 1/2.


More from this chapter

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1

Fill in the blanks:

(i) The probability of an impossible event is...


(ii) The probability of a sure event is ..... .


(iii) For any event E, P(E) + P(not E) = .....


(iv) The probability of a possible but not a sure event lies between and ..... .


(v) The sum of probabilities of the outcomes of an experiment is..... .

 3

Two coins are tossed simultaneously. Find the probability of getting

(i) Exactly 1 head


(ii) At most 1 head


(iii) At least 1 head

 4

A die is thrown once. Find the probability of getting

(i) An even number


(ii) A number less than 5


(iii) A number greater than 2


(iv) A number between 3 and 6


(v) A number other than 3


(vi) The number 5.

 5

A letter of English alphabet is chosen at random. Determine the probability that the chosen letter is a consonant.