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Example 5 Are the points A (3, 6, 9), B (10, 20, 30) and C (25, – 41, 5), the vertices of a right angled triangle?
30
Oct
Example 5 Are the points A (3, 6, 9), B (10, 20, 30) and C (25, – 41, 5), the vertices of a right angled triangle? 20 30) and C (25 41 5 6 9 B (10 Example 5 Are the points A (3 the vertices of a right angled triangle? October 30, 2021 Category: [...]
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Example 5 Are the points A (3 ,
the vertices of a right angled triangle? ,
If A = {3, 6, 9, 12, 15, 18, 21}, B = {4, 8, 12, 16, 20}, C = {2, 4, 6, 8, 10, 12, 14, 16}, D = {5, 10, 15, 20}; find
13
Oct
If A = {3, 6, 9, 12, 15, 18, 21}, B = {4, 8, 12, 16, 20}, C = {2, 4, 6, 8, 10, 12, 14, 16}, D = {5, 10, 15, 20}; find -12 10 14 15 16 … 18 20 20}; find 21 4 6 8 9 b = 4 c = 2 [...]
93. The marks obtained (out of 20) by 30 students of a class in a test are as follows: 14, 16, 15, 11, 15, 14, 13, 16, 8, 10, 7, 11, 18, 15, 14, 19, 20, 7, 10, 13, 12, 14, 15, 13, 16, 17, 14, 11, 10, 20. Prepare a frequency distribution table for the above data using class intervals of equal width in which one class interval is 4 –8 (excluding 8 and including 4).
12
Jul
93. The marks obtained (out of 20) by 30 students of a class in a test are as follows: 14, 16, 15, 11, 15, 14, 13, 16, 8, 10, 7, 11, 18, 15, 14, 19, 20, 7, 10, 13, 12, 14, 15, 13, 16, 17, 14, 11, 10, 20. Prepare a frequency distribution table for [...]
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17 ,
18 ,
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20 ,
20. Prepare a frequency distribution table for the above data using class intervals of equal width in which one class interval is 4 –8 (excluding 8 and including 4). ,
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93. The marks obtained (out of 20) by 30 students of a class in a test are as follows: 14 ,
39. The range of the data 6, 8, 16, 22, 8, 20, 7, 25 is __________.
10
Jul
39. The range of the data 6, 8, 16, 22, 8, 20, 7, 25 is __________. -22 16 … 20 25 is __________. 39. The range of the data 6 7) 8 July 10, 2021 Category: Chapter 5 - Data Handling , Maths , NCERT Class 8 ,
4. The range of the data 30, 61, 55, 56, 60, 20, 26, 46, 28, 56 is
10
Jul
4. The range of the data 30, 61, 55, 56, 60, 20, 26, 46, 28, 56 is -5)(5 20 26 28 4. The range of the data 30 46 56 56 is 60 61 July 10, 2021 Category: Chapter 5 - Data Handling , Maths , NCERT Class 8 ,
Example 2 : The following data : 2, 5, 15, 25, 20, 12, 8, 7, 6, 16, 21, 17, 30, 32, 23, 40, 51, 15, 2, 9, 57, 19, 25 is grouped in the classes 0 –5, 5 –10, 10 –15 etc. Find the frequency of the class 20 –25.
09
Jul
Example 2 : The following data : 2, 5, 15, 25, 20, 12, 8, 7, 6, 16, 21, 17, 30, 32, 23, 40, 51, 15, 2, 9, 57, 19, 25 is grouped in the classes 0 –5, 5 –10, 10 –15 etc. Find the frequency of the class 20 –25. -12 10 –15 etc. Find [...]
A child says that the median of 3,14,18,20,5 is 18. What doesn’t the child understand about finding the median?
03
Jul
A child says that the median of 3,14,18,20,5 is 18. What doesn’t the child understand about finding the median? 14 18 20 5 is 18. What doesn't the child understand about finding the median? A child says that the median of 3 July 3, 2021 Category: Chapter 14 - Statistics , Chapter 15 - Probability [...]
24. Mode of the data 15, 14, 19, 20, 14, 15, 16, 14, 15, 18, 14, 19, 15, 17, 15 is
03
Jul
24. Mode of the data 15, 14, 19, 20, 14, 15, 16, 14, 15, 18, 14, 19, 15, 17, 15 is 14 15 15 is 16 … 17 18 19 20 24. Mode of the data 15 July 3, 2021 Category: Chapter 14 - Statistics , Chapter 15 - Probability , Maths , NCERT Class [...]
6. The class marks of a frequency distribution are given as follows : 15, 20, 25, … The class corresponding to the class mark 20 is :
03
Jul
6. The class marks of a frequency distribution are given as follows : 15, 20, 25, … The class corresponding to the class mark 20 is : ... The class corresponding to the class mark 20 is : 20 25 6. The class marks of a frequency distribution are given as follows : 15 July [...]
2. The range of the data : 25, 18, 20, 22, 16, 6, 17, 15, 12, 30, 32, 10, 19, 8, 11, 20 is
03
Jul
2. The range of the data : 25, 18, 20, 22, 16, 6, 17, 15, 12, 30, 32, 10, 19, 8, 11, 20 is -12 -22 10 11 15 16 … 17 18 19 2. The range of the data : 25 20 20 is 3^2 30 6 8 July 3, 2021 Category: Chapter 14 [...]