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Rd sharma solutions

Question 1

CHAPTERS

5. Factorization Of Algebraic Expressions

6. Factorization Of Polynomials

7. Introduction To Euclidâ€™s Geometry

13. Linear Equations In Two Variables

15. Areas Of Parallelograms And Triangles

18. Surface Area And Volume Of A Cuboid And Cube

19. Surface Area And Volume Of a Right Circular Cylinder

20. Surface Area And Volume Of a Right Circular Cone

21. Surface Area And Volume Of Sphere

22. Tabular Representation Of Statistical Data

23. Graphical Representation Of Statistical Data

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 |

We know, Probability of an event = (Number of Favorable outcomes) / (Total Numbers of outcomes) In this case, total numbers of outcomes = 211 + 814 + 475 = 1500. (Here, total numbers of outcomes = total number of families) (i) Probability of having no girl = 211/1500 = 0.1406 (ii) Probability of having 1 girl = 814/1500 = 0.5426 (iii) Probability of having 2 girls = 475/1500 = 0.3166 (iv) Probability of having at the most one girl = (211+814) /1500 = 1025/1500 = 0.6833 (v) Probability of having more girls than boys = 475/1500 = 0.31

Factorization Of Algebraic Expressions

Introduction To Euclidâ€™s 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

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 |

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