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16. If x is the mean of x1, x2, … , xn, then for a ≠ 0, the mean of ax1, ax2, …, axn, 1x/a, 2/xa , … , nx/a is
03
Jul
16. If x is the mean of x1, x2, … , xn, then for a ≠ 0, the mean of ax1, ax2, …, axn, 1x/a, 2/xa , … , nx/a is ... 16. If x is the mean of x1 1x/a 2/xa ax2 axn nx/a is the mean of ax1 then for a ≠ 0 [...]
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... ,
16. If x is the mean of x1 ,
1x/a ,
2/xa ,
ax2 ,
axn ,
nx/a is ,
the mean of ax1 ,
then for a ≠ 0 ,
x+2 ,
xn ,
15. Let x be the mean of x1, x2, … , xn and y the mean of y1, y2, … , yn. If z is the mean of x1, x2, … , xn, y1, y2, … , yn, then z is equal to
03
Jul
15. Let x be the mean of x1, x2, … , xn and y the mean of y1, y2, … , yn. If z is the mean of x1, x2, … , xn, y1, y2, … , yn, then z is equal to ... 15. Let x be the mean of x1 then z is [...]
Tags:
... ,
15. Let x be the mean of x1 ,
then z is equal to ,
x+2 ,
xn ,
xn and y the mean of y1 ,
y1) ,
y2) ,
yn ,
yn. If z is the mean of x1 ,
14. If each observation of the data is increased by 5, then their mean
03
Jul
14. If each observation of the data is increased by 5, then their mean 14. If each observation of the data is increased by 5 then their mean July 3, 2021 Category: Chapter 14 - Statistics , Chapter 15 - Probability , Maths , NCERT Class 9 ,
13. If x represents the mean of n observations x1, x2, …, xn, then value of
03
Jul
13. If x represents the mean of n observations x1, x2, …, xn, then value of ... 13. If x represents the mean of n observations x1 then value of x+2 xn July 3, 2021 Category: Chapter 14 - Statistics , Chapter 15 - Probability , Maths , NCERT Class 9 ,
12. If the mean of the observations : x, x + 3, x + 5, x + 7, x + 10 is 9, the mean of the last three observations is
03
Jul
12. If the mean of the observations : x, x + 3, x + 5, x + 7, x + 10 is 9, the mean of the last three observations is 12. If the mean of the observations : x the mean of the last three observations is x + 10 is 9 x + [...]
11. The mean of five numbers is 30. If one number is excluded, their mean becomes 28. The excluded number is :
03
Jul
11. The mean of five numbers is 30. If one number is excluded, their mean becomes 28. The excluded number is : 11. The mean of five numbers is 30. If one number is excluded their mean becomes 28. The excluded number is : July 3, 2021 Category: Chapter 14 - Statistics , Chapter 15 [...]
10. To draw a histogram to represent the following frequency distribution :
03
Jul
10. To draw a histogram to represent the following frequency distribution : 10. To draw a histogram to represent the following frequency distribution : July 3, 2021 Category: Chapter 14 - Statistics , Chapter 15 - Probability , Maths , NCERT Class 9 ,
9. A grouped frequency distribution table with classes of equal sizes using 63-72 (72 included) as one of the class is constructed for the following data :
03
Jul
9. A grouped frequency distribution table with classes of equal sizes using 63-72 (72 included) as one of the class is constructed for the following data : 9. A grouped frequency distribution table with classes of equal sizes using 63-72 (72 included) as one of the class is constructed for the following data : July [...]
8. A grouped frequency table with class intervals of equal sizes using 250-270 (270 not included in this interval) as one of the class interval is constructed for the following data :
03
Jul
8. A grouped frequency table with class intervals of equal sizes using 250-270 (270 not included in this interval) as one of the class interval is constructed for the following data : 8. A grouped frequency table with class intervals of equal sizes using 250-270 (270 not included in this interval) as one of the [...]
7. In the class intervals 10-20, 20-30, the number 20 is included in :
03
Jul
7. In the class intervals 10-20, 20-30, the number 20 is included in : 20-30 7. In the class intervals 10-20 the number 20 is included in : July 3, 2021 Category: Chapter 14 - Statistics , Chapter 15 - Probability , Maths , NCERT Class 9 ,