Download App

Statistics — MATHS STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceMATHSStatistics1 Mark
Question

Mean deviation for n observations x1, x2, ...... , xn from their mean x is given by:

  1. $\sum\limits^{\text{n}}_{\text{i}=1}(\text{x}_\text{i}-\bar{\text{x}})$

  2. $\frac{1}{\text{n}}\sum\limits^{\text{n}}_{\text{i}=1}|\text{x}_\text{i}-\bar{\text{x}}|$

  3. $\sum\limits^{\text{n}}_{\text{i}=1}(\text{x}_\text{i}-\bar{\text{x}})^2$

  4. $\frac{1}{\text{n}}\sum\limits^{\text{n}}_{\text{i}=1}(\text{x}_\text{i}-\bar{\text{x}})^2$

✓

Answer

  1. $\frac{1}{\text{n}}\sum\limits^{\text{n}}_{\text{i}=1}|\text{x}_\text{i}-\bar{\text{x}}|$

Solution:

$\text{MD}=\frac{1}{\text{n}}\sum\limits^{\text{n}}_{\text{i}=1}|\text{x}_\text{i}-\bar{\text{x}}|$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Statistics→Statistics — all question types→MATHS STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

The domain of the function $^{7-\text{x}}\text{p}_{\text{x}-3}$ is:
→
For a conical section to be parabola, if :
→
Let $\text{f(x)}=\sqrt{\text{x}^2+1}$ Then which of the following is correct?
  1. $\text{f(xy)}=\text{f(x)}\text{f(y)}$
  2. $\text{f(xy)}\geq\text{f(x)}\text{f(y)}$
  3. $\text{f(xy)}\leq\text{f(x)}\text{f(y)}$
  4. None os these.
→
$\tan3\text{A}-\tan2\text{A}-\tan\text{A}$ is equal to:
→
If the complex number $\text{z}=\text{x}+\text{iy}$ satisfies the condition $|\text{z}+1|=1,$ then z lies on:
→
Choose the correct answer.
If tn denotes the nth term of the series 2 + 3 + 6 + 11 + 18 + ... then t50 is:
→
$\frac{\sin 3 x-\sin x}{\cos x-\cos 3 x}$ is equal to
→
Sum of the coefficients of the terms of degree mm in the expansion of (1 + x)n (1 + y)n (1 + z)n is:
    →
    Eight straight lines are drawn in the plane such that no two lines are parallel and no three lines are concurrent.The number of parts into which these lines divide the plane, is:
    →
    The centroid of a triangle is (2, 7) and two of its vertices are (4, 8) and (-2, 6). The third vertex is
    →