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Answered on 02/12/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Probability

Can the experimental probability of an event be greater than 1? Justify your answer?

Sreedevi A.

Entusiastic Teacher

No, because the number of successes and failures should be equal to 1.

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Answered on 02/12/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Probability

Can the experimental probability of an event be a negative number? If not why?

Sreedevi A.

Entusiastic Teacher

The probability of the outcome of an experiment is never negative.

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Answered on 02/12/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Probability

Find the probability of getting a number less than 5 in a single row of a die?

Sreedevi A.

Entusiastic Teacher

In the single throw of a die, the sample space n(S) = 6; let 'E' be the event of getting '5'. n(E) = 1; P(E) = n(E) /n(S); P(E) = 1/6.

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Answered on 02/12/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Probability

One card is drawn from a well shuffled deck of 52 cards. Find the probability of drawing an ace?

Sreedevi A.

Entusiastic Teacher

There will be 4 aces (Event E) that belongs to 4 different types say hearts, clubs, diamonds and spades. The probability of getting an ace of 52 cards (sample space = 52) is given by the ratio of favourable events to sample space. P(E) = n(E) / n(S); P(E) = 4/52; P(E) = 1/4.

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Answered on 25/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Probability

Two dice are thrown. What is the probability of obtaining a total of 10 or 11?

Mamta Mund

Maths Tutor

Sample space = {(1,1), (1,2,), ........, (5,6), (6,1), (6,6)} Number of sample space or cardinality of S = |s|= 36 Let A be the event of getting total of 10 or 11 A={(5,5),(5,6),(4,6),(6,4),(6,5)}. |A|=5. P(A)= |A|/|S|= 5 / 36.

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Asked on 02/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Probability

Two dices are thrown simultaneously. Find the probability of getting: an even number as the sum?

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Asked on 02/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Probability

Two dices thrown simultaneously. Find the probability of getting: a total of at least 10?

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Asked on 02/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Probability

17 cards numbered 1, 2, 3, .., 16, 17 are put in box and mixed thoroughly. One person draws a card from...

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Asked on 02/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Probability

Find the probability of choosing square numbers between 2 and 100?

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Asked on 02/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Probability

In a throw of a fair die, what is the probability of getting a number greater than 4?

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