R d sharma solutions mathematics class 9 Solutions for Chapter 25 probability

Exercises in Chapter 25 probability Grade 9

Probability Exercise 25.1

Questions in Probability Exercise 25.1

1500 families with 2 children were selected randomly, and the following data were recorded:

no. of girls in a family	0	1	2
no. of girls	211	814	475

If a family is chosen at random, compute the probability that it has: (i) No girl (ii) 1 girl (iii) 2 girls (iv) At most one girl (v) More girls than boys

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Chapters in this book

Exponents Of Real Numbers

Rationalisation

Algebraic Identities

Factorization Of Algebraic Expressions

Factorization Of Polynomials

Introduction To Euclid’s Geometry

Lines And Angles

Triangle And Its Angles

Congruent Triangles

Coordinate Geometry

Linear Equations In Two Variables

Areas Of Parallelograms And Triangles

Surface Area And Volume Of A Cuboid And Cube

Surface Area And Volume Of a Right Circular Cylinder

Surface Area And Volume Of a Right Circular Cone

Surface Area And Volume Of Sphere

Tabular Representation Of Statistical Data

Graphical Representation Of Statistical Data

Measures Of Central Tendency

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