NCERT class 11 maths chapter 15 Statistics
Question 1:4, 7, 8, 9, 10, 12, 13, 17
Exercise 15.1 maths class 11 Chapter 15 Statistics
Question 2:38, 70, 48, 40, 42, 55, 63, 46, 54, 44 Find the mean deviation about the median for the data in Exercises 3 and 4
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Question 3:13, 17, 16, 14, 11, 13, 10, 16, 11, 18, 12, 17
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Question 4:36, 72, 46, 42, 60, 45, 53, 46, 51, 49 Find the mean deviation about the mean for the data in Exercises 5 and 6
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Question 5:xi 5 10 15 20 25 f i 7 4 6 3 5
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Question 6:xi 10 30 50 70 90 f i 4 24 28 16 8 Find the mean deviation about the median for the data in Exercises 7 and 8
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Question 7:xi 5 7 9 10 12 15 f i 8 6 2 2 2 6
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Question 8:xi 15 21 27 30 35 f i 3 5 6 7 8 Find the mean deviation about the mean for the data in Exercises 9 and 10
EXERCISE 15.1Find the mean deviation about the mea
Question 9:Income per 0-100 100-200 200-300 300-400 400-500 500-600 600-700 700-800 day in ` Number 4 8 9 10 7 5 4 3 of persons
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Question 10:Height 95-105 105-115 115-125 125-135 135-145 145-155 in cms Number of 9 13 26 30 12 10 boys
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Question 11:Find the mean deviation about median for the following data : Marks 0-10 10-20 20-30 30-40 40-50 50-60 Number of 6 8 14 16 4 2 Girls
Question 12:Calculate the mean deviation about median age for the age distribution of 100 persons given below: Age 16-20 21-25 26-30 31-35 36-40 41-45 46-50 51-55 (in years) Number 5 6 12 14 26 12 16 9
