Find the standard deviation of the numbers 3,6,2,1,7 and ...
Find the standard deviation of the numbers 3,6,2,1,7 and 5.
2.00
2.16
2.50
2.56
Correct answer is B
| \(x\) | 3 | 6 | 2 | 1 | 7 | 5 | Total = 24 |
| \(x - \bar{x}\) | -1 | 2 | -2 | -3 | 3 | 1 | |
| \((x - \bar{x})^{2}\) | 1 | 4 | 4 | 9 | 9 | 1 | 28 |
\(\bar{x} = \frac{24}{6} = 4\)
\(S.D = \sqrt{\frac{\sum (x - \bar{x})^{2}}{n}}\)
= \(\sqrt{\frac{28}{6}} = \sqrt{4.667} = 2.16\)
Given that \(2^{x} = 0.125\), find the value of x....
If \(f(x) = x^{2}\) and \(g(x) = \sin x\), find g o f....
If \(\log_{9} 3 + 2x = 1\), find x....
Simplify \(\sqrt{(\frac{-1}{64})^{\frac{-2}{3}}}\)...
Given that \(x * y = \frac{x + y}{2}, x \circ y = \frac{x^{2}}{y}\) and \((3 * b) \circ&nb...
If \(\int^3_0(px^2 + 16)dx\) = 129. Find the value of p...
Express \(\frac{8 - 3\sqrt{6}}{2\sqrt{3} + 3\sqrt{2}}\) in the form \(p\sqrt{3} + q\sqrt{2}\)...
The gradient of a curve at the point (-2, 0) is \(3x^{2} - 4x\). Find the equation of the curve....