Probability

In a random experiment, if all outcomes are equally likely, the probability of an event is:

1. Number of favourable outcomes / Total outcomes
2. Total outcomes / Favourable outcomes
3. Total outcomes × Favourable outcomes
4. Favourable outcomes - Total outcomes

The probability of selecting a vowel from the letters of the word "MATHEMATICS" is:

1. 3/11
2. 4/11
3. 5/11
4. 6/11

If two dice are rolled together, the total number of outcomes is:

1. 6
2. 12
3. 18
4. 36

If a die is rolled, the probability of getting a number greater than 4 is:

1. 1/6
2. 1/3
3. 1/2
4. 2/3

The sample space of tossing a single coin is:

1. {H}
2. {T}
3. {H, T}
4. {HT}

If P(A) = 0.4, then P(not A) is:

1. 0.4
2. 0.6
3. 1.4
4. 0

A card is drawn from a standard deck of 52 cards. The probability of drawing an ace is:

1. 1/52
2. 4/52
3. 13/52
4. 1/4

The probability of an event and its complement together is:

1. 0
2. 1
3. 2
4. 1/2

If two coins are tossed together, the total number of possible outcomes is:

1. 2
2. 3
3. 4
4. 8

The probability of a sure event is:

1. 0
2. 1
3. 1/2
4. -1

When a die is thrown once, the probability of getting an even number is:

1. 1/6
2. 1/3
3. 1/2
4. 2/3

A bag contains 5 red balls and 3 blue balls. The probability of selecting a red ball is:

1. 3/8
2. 5/8
3. 1/2
4. 8/5

The probability of an impossible event is:

1. 1
2. 0
3. 1/2
4. -1

If a coin is tossed once, the probability of getting a head is:

1. 0
2. 1
3. 1/2
4. 2

The probability of an event always lies between:

1. -1 and 1
2. 0 and 1
3. 1 and 2
4. -∞ and ∞