NCERT class 11 maths chapter 15 Statistics
Question 1:6, 7, 10, 12, 13, 4, 8, 12
Exercise 15.2 maths class 11 Chapter 15 Statistics
Question 2:First n natural numbers
CBSE class 11 maths ncert solutions Chapter 15
Question 3:First 10 multiples of 3
class 11 maths solutions Statistics
Question 4:x i 6 10 14 18 24 28 30 f i 2 4 7 12 8 4 3
NCERT class 11 chemistry chapter 15 exercise solutions
Question 5:xi 92 93 97 98 102 104 109 f i 3 2 3 2 6 3 3
Statistics class 11 ncert solutions
Question 6:Find the mean and standard deviation using short-cut method. xi 60 61 62 63 64 65 66 67 68 f i 2 1 12 29 25 12 10 4 5 Find the mean and variance for the following frequency distributions in Exercises 7 and 8
class 11 Maths NCERT Solutions Chapter 15 Statistics Exercise 15.2
Question 7:Classes 0-30 30-60 60-90 90-120 120-150 150-180 180-210 Frequencies 2 3 5 10 3 5 2
Exercise 15.2 class 11 Math ncert solutions Chapter 15
Question 8:Classes 0-10 10-20 20-30 30-40 40-50 Frequencies 5 8 15 16 6
EXERCISE 15.2Find the mean and variance for each o
Question 9:Find the mean, variance and standard deviation using short-cut method Height 70-75 75-80 80-85 85-90 90-95 95-100 100-105105-110 110-115 in cms No. of 3 4 7 7 15 9 6 6 3 children
Question 10:The diameters of circles (in mm) drawn in a design are given below: Diameters 33-36 37-40 41-44 45-48 49-52 No. of circles 15 17 21 22 25 Calculate the standard deviation and mean diameter of the circles. [ Hint First make the data continuous by making the classes as 32.5-36.5, 36.5-40.5, 40.5-44.5, 44.5 - 48.5, 48.5 - 52.5 and then proceed.]
