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Question
Write a short note on the following:
1 The weekly salaries of a group of employees are given in the following table. Find the mean and standard deviation of the salaries
Salaries (in Rupees)
75
80
85
90
95
100
No. of persons
3
7
18
12
6
4
2 Find the standard deviation of profit of 100 companies-
Profit in crores
8-10
10-12
12-14
14-16
16-18
18-20
Number of companies
16
24
40
60
20
3 Prepare a bar diagram for the following data: India's foreign debt as on 1.4.1980
Source of borrowing
U. S. A
U. S. S. R
U. K.
Japan
Federal Republic of Germany
Amounts of loan (in crores of Rs.)
1,800
1,200
800
600
500
4 Derive the coordinates of the point P, which divides A(x1, y1) and B(x2, y2) internally in the ratio m: n
Q. Define Multiplication Rule in probability? Ans. A family has two girls, Ann and Barb, and three boys, Carl, David and Earl, in it. In how many ways can the mother pick
i have this data 48 degree, 72 degree, 43.2degree, 24degree , 40.8degree on this make a pie chart
Diagonals of a trapezium divide each other proportionally: Given : In trapezium ABCD , AB// DC R.T.P :AO/OC = BO/OD Construction: Draw the line PQ; parallel to AB or C
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If I divide any number do I get the manservant 2 times
I don''t get it .... Help
HOW DOES A CHILD THINK? : You must have interacted with children of various ages. From your experience, do you feel that children start learning, from a very early age, and conti
find the composition of the simple harmonic motion of the same period in the perpendicular directions
What angle (to the nearest degree) corresponds to the cos 0.6 or what is cos-1(0.6)? (Note: Use Appendix I) What angle (to the nearest degree) corresponds to the sin 0.6 or what
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