Q. 183.7( 3 Votes )

# A survey of 600 students about their liking on coffee was conducted and recoded as under:

Out of these students one is chosen at random. What is the probability that the chosen student

(i) likes coffee? (ii) dislikes coffee?

Answer :

Total number of students: 600

Number of students who like coffee: 360

Number of students who dislike coffee: 140

Probability P() =

(i) Let p( like ) be probability of ladies who dislike coffee

P (like) =

P (like) =

(ii) Let p( dislike ) be probability of ladies who dislike coffee

P (dislike) =

P (dislike) = =

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PREVIOUSA die is thrown 100 times and following observations were recorded:If a die is thrown at random, find the probability of getting(i) a number less than 3? (ii) a number greater than 4 (iii) an even numberNEXTTwo coins are tossed 1000 times and the outcomes are recorded as given below:In a simple throw of two coins, what is the probability of getting(i) at most one head? (ii) At least one head?

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