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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
When do you think you should introduce word problems-before children master the formal algorithm, or after? What are your reasons for your choice? In any case, no textbook can s
a) Using Karnaugh map, show X': A'BC'D'+ ABC'D'+ A'BCD'+ ABCD' (b) If R is an equival
1/cos(x-a)cos(x-b)
The base of a right cylinder is the circle in the xy -plane with centre O and radius 3 units. A wedge is obtained by cutting this cylinder with the plane through the y -axis in
Ask Suppose I offer you a loan to start a safety matchstick production unit on the following terms: I shall first advance you Rs.50,000/- to set up your unit, and wait for 3 month
three years ago,Rica was thrice as old as dandy.Three years hence,she will be twice as old.Find their present.
Coefficient of Determination It refers to the ratio of the explained variation to the total variation and is utilized to measure the strength of the linear relationship. The s
Test of hypothesis about the population mean When the population standard deviation (S) is identified then the t statistic is defined as t = ¦(x¯ - µ)/ S x¯ ¦
who discovered unitary method
Factoring By Grouping It is a method that isn't utilized all that frequently, but while it can be used it can be somewhat useful. Factoring by grouping can be nice, however it
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