Probability Test

Probability

This is Probability Test-01 for CBSE class 10 Maths.. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
An unbiased die is thrown once. The probability of getting a prime number is
  • A
    \(\frac{1}{2}\)
    Correct
  • B
    \(\frac{1}{4}\)
  • C
    \(\frac{1}{5}\)
  • D
    \(\frac{1}{3}\)
2
A die is thrown once. The probability of getting an even number and a multiple of 3 is
  • A
    \(\frac{1}{5}\)
  • B
    \(\frac{1}{2}\)
  • C
    \(\frac{1}{6}\)
    Correct
  • D
    \(\frac{1}{3}\)
3
When a die is thrown, the probability of getting an odd number less than 3 is
  • A
    \(\frac{1}{6}\)
    Correct
  • B
    \(\frac{1}{4}\)
  • C
    \(\frac{1}{3}\)
  • D
    \(\frac{1}{2}\)
4
One card is drawn from a well shuffled pack of 52 cards. The probability of getting an ace is
  • A
    \(\frac{1}{{52}}\)
  • B
    \(\frac{1}{{13}}\)
    Correct
  • C
    \(\frac{4}{{13}}\)
  • D
    \(\frac{2}{{13}}\)
5
A number is selected at random from the numbers 7, 3, 9, 7, 9, 5, 7, 9, 9, 5. The probability that the selected number is their average is
  • A
    \(\frac{3}{{10}}\)
    Correct
  • B
    \(\frac{7}{{10}}\)
  • C
    \(\frac{5}{{10}}\)
  • D
    \(\frac{1}{{10}}\)
6
A box contains 3 blue balls, 2 white balls and 4 red balls. If a ball is drawn at random from the box, the probability of getting a white ball is
  • A
    \(1\)
  • B
    \(\frac{2}{9}\)
    Correct
  • C
    \(\frac{3}{9}\)
  • D
    \(\frac{4}{9}\)
7
If ‘\(\varphi \)’ is an impossible event, then p(\(\varphi \)) =
  • A
    \(\frac{1}{4}\)
  • B
    \(\frac{1}{2}\)
  • C
    0
    Correct
  • D
    1
8
If S is the sample space of a random experiment, then p(S) =
  • A
    0
  • B
    \(\frac{1}{8}\)
  • C
    \(\frac{1}{4}\)
  • D
    1
    Correct
9
There are 8 defective items in a sample of 24 items. One item is drawn at random. The probability that it is a non defective item is
  • A
    \(\frac{1}{3}\)
  • B
    1
  • C
    \(\frac{1}{2}\)
  • D
    \(\frac{2}{3}\)
    Correct
10
The probability that a student will score centum in Mathematics is \({tex}\frac{3}{{10}}\). The probability that she will not score centum is
  • A
    \(\frac{7}{{10}}\)
    Correct
  • B
    \(\frac{1}{3}\)
  • C
    \(\frac{1}{2}\)
  • D
    \(\frac{6}{{10}}\)
11
If ‘p’ is the probability of an event, then p satisfies
  • A
    \(0 \leqslant p \leqslant 1\)
  • B
    \(0 < p < 1\)
    Correct
  • C
    \(0 \leqslant p < 1\)
  • D
    \(0 < p \leqslant 1\)
12
A bag contains 5 black balls, 4 white balls and 3 red balls. If a ball is selected at random, the probability that it is not red is
  • A
    \(\frac{3}{4}\)
    Correct
  • B
    \(\frac{5}{{12}}\)
  • C
    \(\frac{3}{{12}}\)
  • D
    \(\frac{1}{2}\)
13
Two dice are thrown simultaneously. The probability of getting a doublet is
  • A
    \(\frac{1}{2}\)
  • B
    \(\frac{1}{6}\)
    Correct
  • C
    \(\frac{1}{{36}}\)
  • D
    \(\frac{2}{3}\)
14
An unbiased die is thrown once. The probability of getting a prime or composite number is
  • A
    \(\frac{1}{2}\)
  • B
    \(\frac{5}{6}\)
    Correct
  • C
    \(\frac{1}{6}\)
  • D
    \(1\)
15
The probability of getting 3 head or 3 tails in tossing a coin 3 times is
  • A
    \(\frac{3}{8}\)
  • B
    \(\frac{1}{2}\)
  • C
    \(\frac{1}{8}\)
  • D
    \(\frac{1}{4}\)
    Correct