A survey of 200 families in a society shows the following results: Number of cars owned by a family 0 1 2 3 or more Number of families 20 105 60 15 Out of these families, one is chosen at random. What is the probability that the chosen family has 2 cars?

Given: A survey of 200 families in a society shows the following results: Number of cars owned by a family 0 1 2 3 or more Number of families 20 105 60 15 We know that, Probability of an event , P E = Number of favourable outcomes Total number of outcomes Total number of families = 20 + 105 + 60 + 15 = 200 Number of outcomes that a family selected at random has two vehicles, i.e., 2 cars = 2 ∴ Probability that a family selected at random has no car = 2 200 = 1 100 Hence, Probability that a family selected at random has no car = 1 100 .

A survey of 200 families in a society shows the following results: Number of cars owned by a family 0 1 2 3 or more Number of families 20 105 60 15 Out of these families, one is chosen at random. What is the probability that the chosen family has more than 1 car?

Given: A survey of 200 families in a society shows the following results: Number of cars owned by a family 0 1 2 3 or more Number of families 20 105 60 15 We know that, Probability of an event , P E = Number of favourable outcomes Total number of outcomes Total number of families = 20 + 105 + 60 + 15 = 200 Number of outcomes that a family selected at random has more than 1 car = 60 + 15 = 75 ∴ Probability that a family selected at random has more than 1 car = 75 200 = 3 8 Hence, Probability that a family selected at random has no car = 3 8 .

A survey of 200 families in a society shows the following results: Number of cars owned by a family 0 1 2 3 or more Number of families 20 105 60 15 Out of these families, one is chosen at random. What is the probability that the chosen family has 3 or more cars?

Given: A survey of 200 families in a society shows the following results: Number of cars owned by a family 0 1 2 3 or more Number of families 20 105 60 15 We know that, Probability of an event , P E = Number of favourable outcomes Total number of outcomes Total number of families = 20 + 105 + 60 + 15 = 200 Number of outcomes that a family selected at random has 3 or more cars = 15 ∴ Probability that a family selected at random has 3 or more cars = 15 200 = 3 40 Hence, Probability that a family selected at random has no car = 3 40 .

E M B I B E

START UP MATHEMATICS>Chapter 22 - Probability>EXERCISE

Monicaa Abhijit Solutions for Chapter: Probability, Exercise 1: EXERCISE

Author:Monicaa Abhijit

Monicaa Abhijit Mathematics Solutions for Exercise - Monicaa Abhijit Solutions for Chapter: Probability, Exercise 1: EXERCISE

Attempt the practice questions on Chapter 22: Probability, Exercise 1: EXERCISE with hints and solutions to strengthen your understanding. START UP MATHEMATICS solutions are prepared by Experienced Embibe Experts.

Questions from Monicaa Abhijit Solutions for Chapter: Probability, Exercise 1: EXERCISE with Hints & Solutions

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 22 - Probability>EXERCISE>Q 1

Two fair coins are tossed $200$ times. Two heads are obtained $120$ times. Now, if the coin is tossed at random, what is the probability of getting $2$ heads?

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 22 - Probability>EXERCISE>Q 3

Two dice are rolled simultaneously. Find the probability of getting:

Sum of numbers as at least

10

.

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 22 - Probability>EXERCISE>Q 6

An urn contains $3$ red, $5$ blue, $4$ green and $6$ orange marbles. A marble is drawn from the urn at random. What is the probability that it is: Not a red marble?

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 22 - Probability>EXERCISE>Q 6

An urn contains $3$ red, $5$ blue, $4$ green and $6$ orange marbles. A marble is drawn from the urn at random. What is the probability that it is: Either blue or orange marble?

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 22 - Probability>EXERCISE>Q 6

An urn contains $3$ red, $5$ blue, $4$ green and $6$ orange marbles. A marble is drawn from the urn at random. What is the probability that it is: An orange marble?

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 22 - Probability>EXERCISE>Q 7

A survey of $200$ families in a society shows the following results: