The sum of deviations of a set of observations x1, x2, ......, xn measured from 50 is -10 and the sum of deviations from 46 is 70, then the number of observations is

UPPCS previous year question

2022 Quantitative Aptitude PYQ

Paper question with options and verified answer

2022Quantitative Aptitude

The sum of deviations of a set of observations x₁, x₂, ......, x_n measured from 50 is -10 and the sum of deviations from 46 is 70, then the number of observations is

More Quantitative Aptitude previous year questions

Sonia sold an article at a gain of 16%. If she had bought at 4% less and sold it for Rs. 8 more, she would have gained 2
P and Q are in the ratio 5 : 6 and difference of their squares is 99. The value of P is
The roots of the equation 9x2 – Rx + 81 = 0 will be equal, if values of R are
The expression 2x3 + x2 – 2x – 1 is divisible by
If x and y are positive integers such that x2 – y2 = 13, then the possible value of x2 + y2 will be
If the cost price of 10 shirts is equal to the selling price of 08 shirts, then which of the following is true for the t