Math part 1 class-11

Chapter 9 Probability Miscellaneous Exercise 9

Chapter 9 Probability Miscellaneous Exercise 9 Chapter 9 Probability Miscellaneous Exercise 9 (I) Select the correct answer from the given four alternatives. Question 1.There are 5 girls and 2 boys,…

Chapter 9 Probability Ex 9.5

Chapter 9 Probability Ex 9.5 Chapter 9 Probability Ex 9.5 Question 1.If odds in favour of X solving a problem are 4 : 3 and odds against Y solving the…

Chapter 9 Probability Ex 9.4

Chapter 9 Probability Ex 9.4 Chapter 9 Probability Ex 9.4 Question 1.There are three bags, each containing 100 marbles. Bag 1 has 75 red and 25 blue marbles. Bag 2…

Chapter 9 Probability Ex 9.3

Chapter 9 Probability Ex 9.3 Chapter 9 Probability Ex 9.3 Question 1.A bag contains 3 red marbles and 4 blue marbles. Two marbles are drawn at random without replacement. If…

Chapter 9 Probability Ex 9.2

Chapter 9 Probability Ex 9.2 Chapter 9 Probability Ex 9.2 Question 1.First, 6 faced die which is numbered 1 to 6 is thrown, then a 5 faced die which is…

Chapter 9 Probability Ex 9.1

Chapter 9 Probability Ex 9.1 Chapter 9 Probability Ex 9.1 Question 1.There are four pens: Red, Green, Blue, and Purple in a desk drawer of which two pens are selected…

Chapter 8 Measures of Dispersion Ex 8.3

Chapter 8 Measures of Dispersion Ex 8.3 Chapter 8 Measures of Dispersion Ex 8.3 Question 1.The means of two samples of sizes 60 and 120 respectively are 35.4 and 30.9…

Chapter 8 Measures of Dispersion Ex 8.2

Chapter 8 Measures of Dispersion Ex 8.2 Chapter 8 Measures of Dispersion Ex 8.2 Question 1.Find variance and S.D. for the following set of numbers.7, 11, 2, 4, 9, 6,…

Chapter 8 Measures of Dispersion Ex 8.1

Chapter 8 Measures of Dispersion Ex 8.1 Chapter 8 Measures of Dispersion Ex 8.1 Question 1.Find a range of the following data:19, 27, 15, 21, 33, 45, 7, 12, 20,…