Probability 1

Last Updated :
Discuss
Comments

Question 1

What is the probability of getting a sum of 9 from two throws of a dice?

  • 1/3

  • 1/6

  • 1/9

  • 1/12

Discuss it

Question 2

Let f(x) be the continuous probability density function of a random variable x, the probability that a < x ≤ b, is

  • f (b − a)

  • f (b) − f (a)

  • [Tex]P(a < x \leq b) = \int_{a}^{b} f(x) \, dx[/Tex]

  • [Tex]P(a < x \leq b) = \int_{a}^{b} xf(x) \, dx[/Tex]

Discuss it

Question 3

What is the probability that a randomly selected bit string of length 10 is a palindrome?

  • 1/64

  • 1/32

  • 1/8

  • 1/4

Discuss it

Question 4

What is the probability of 3 students sharing a birthday in a class of 30 students is ________ .

  • 0.0300

  • 0.7029

  • 0.5604

  • None of the above

Discuss it

Question 5

Four different pens (1, 2, 3, 4) are to be distributed at random in four pen stands marked as 1, 2, 3, 4. What is the probability that none of the pen occupies the place corresponding to its number ?

  • 17/24

  • 3/8

  • 1/2

  • 5/8

Discuss it

Question 6

A box contains 5 green, 4 yellow and 3 white balls. Three balls are drawn at random. What is the probability that they are not of the same color?

  • 3/44

  • 3/55

  • 52/55

  • 41/44

Discuss it

Question 7

Two cards are drawn together from a pack of 52 cards. What is the probability that one is a spade and one is a heart?

  • 3/20

  • 29/34

  • 47/100

  • 13/102

Discuss it

Question 8

From a pack of 52 cards, two cards are drawn together at random. What is the probability of both the cards being kings?

  • 1/15

  • 25/57

  • 35/256

  • 1/221

Discuss it

Question 9

Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even?

  • 7/9

  • 5/8

  • 3/4

  • 1/2

Discuss it

Question 10

A number p is chosen at random from the numbers [-3, 3]. What is the probability that value of p < 2

  • 3/7

  • 5/7

  • 4/7

  • 1/7

Discuss it

There are 18 questions to complete.

Take a part in the ongoing discussion