Answers

Find the standard deviation of 2,3,8,10 and 12 A. 3.9 B. 4.9 C. 5.9 D. 6.9 Correct Answer:…

Evaluate n+1Cn-2 If n =15 A. 3630 B. 3360 C. 1120 D. 560 Correct Answer: Option D Explanation…

Evaluate (int^{frac{pi}{4}}_0sec^2 theta d theta) A. 1 B. 2 C. 3 D. 4 Correct Answer: Option A Explanation…

The mean of seven numbers is 96. If an eighth number is added, the mean becomes 112. Find…

Find the median of 2,3,7,3,4,5,8,9,9,4,5,3,4,2,4 and 5 A. 9 B. 8 C. 7 D. 4 Correct Answer: Option…

If y = x2 – (frac{1}{x}), find (frac{delta y}{delta x}) A. 2x – (frac{1}{x^2}) B. 2x + x2…

Evaluate (int^2_1(x^2 – 4x)dx) A. (frac{11}{3}) B. (frac{3}{11}) C. (-frac{3}{11}) D. (-frac{11}{3}) Correct Answer: Option D Explanation (int^2_1(x^2…

The distance between the point (4, 3) and the intersection of y = 2x + 4 and y…

Find the equation of the line through the points (-2, 1) and (-(frac{1}{2}), 4) A. y = 2x…

If angle (theta) is 135o, evaluate cos(theta) A. (frac{1}{2}) B. (frac{sqrt{2}}{2}) C. (-frac{sqrt{2}}{2}) D. (-frac{1}{2}) Correct Answer: Option…