Origin and scale

Математика, информатика, механика

1.The mean of the squared deviations of x1, (i=1,2………,n) observations from their arithmetic mean is called…………..(------)

2.In rational fraction N(x)/D(x), D(x)= 0, the degree of N (x) is less than the degree of D(x) is called (-----)

3.Mean is affected by change in……..? (origin and scale)

4.The third proportional of x and y is: (-----)

5.If length and width of rectangle are x and y respectively then which of the following shows perimeter? (-----)

6.Partial fractions of x2 +1/(x+1)(x-1) are of the form: (-----)

7.Formula to determine the size of a class is: (-----)

8.The measure which determines the middle most observation in a data set is called? (-----)

9.The solution set of 5x²=30x is: