R d sharma solutions mathematics class 8 Solutions for Chapter 26 data handling probability

Exercises in Chapter 26 data handling probability Grade 8

Data Handling Probability Exercise 26.1

Questions in Data Handling Probability Exercise 26.1

The probability that it will rain tomorrow is 0.85. What is the probability that it will not rain tomorrow?

A die thrown. Find the probability of getting:

(i) a prime number

(ii) 2 or 4

(iii)a multiple of 2 or 3

In a simultaneous throw of a pair of dice, find the probability of getting:

(i) 8 as the sum

(ii) a doublet

(iii) a doublet of prime numbers

(iv) a doublet of odd numbers

(v) a sum greater than9

(vi) An even number on first

(vii) an even number on one and a multiple of 3 on the other

(viii) neither 9 nor 11 as the sum of the numbers on the faces

(ix) a sum less than 6

(x) a sum less than 7

(xi) a sum more than 7

(xii) at least once a number other than 5 on any dice.

Three coins are tossed together. Find the probability of getting:

(i) exactly two heads

(ii) at least two heads

(iii) at least one head and one tail

(iv)no tails

An urn contains 10 red and 8 white balls. One ball is drawn at random. Find the probability that the ball drawn is white.

A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:

(i) a black king

(ii) either a black card or a king

(iii) black and a king

(iv) a jack, queen or a king

(v) neither a heart nor a king

(vi) spade or an ace

(vii) neither an ace nor a king

(viii) neither a red card nor a queen

(ix) other than an ace

(x) a ten

(xi) a spade

(xii) a black card

(xiii) the seven of clubs

(xiv) jack

(xv) the ace of spades

(xvi) a queen

(xvii) a heart

(xviii)a red card

A bag contains 3 red balls, 5 black balls and 4 white balls. A ball is drawnat random from the bag. What is the probability that the ball drawn is :

(i) White?

(ii) red?

(iii) black?

(iv)not red?

What is the probability that a number selected from the numbers 1, 2, 3, …, 15 is a multiple of 4?

A bag contains 6 red, 8 black and 4 white balls. A ball is drawn at random.What is the probability that ball drawn is not black?

A bag contains 5 white and 7 red balls. One ball is drawn at random. What is the probability that ball drawn is white?

A bag contains 4 red, 5 black and 6 white balls. One ball is drawn from the bag at random. Find the probability that the ball drawn is:

(i) white

(ii) red

(iii) not black

(iv)red or white

A bag contains 3 red balls and 5 black balls. A ball is drawn at random fromthe bag. What is the probability that the ball drawn is:

(i) red

(ii)black

A bag contains 5 red marbles, 8 white marbles, 4 green marbles. What is the probability that if one marble is taken out of the bag at random, it will be

(i) red

(ii) white

(iii)not green

If you put 21 consonants and 5 vowels in a bag. What would carry greater probability? Getting a consonant or a vowel? Find each probability?

If we have 15 boys and 5 girls in a class which carries a higher probability? Getting a copy belonging to a boy or a girl. Can you give it a value?

It you have a collection of 6 pairs of white socks and 3 pairs of black socks. What is the probability that a pair you pick without looking is (i) white? (ii) black?

If you have a spinning wheel with 3-green sectors, 1-blue sector and 1-redsector. What is the probability of getting a green sector? Is it the maximum?

When two dice are rolled:

(i) List the outcomes for the event that the total is odd.

(ii) Find probability of getting an odd total.

(iii) List the outcomes for the event that total is less than 5.

(iv)Find the probability of getting a total less than 5?