Goodmarks

Mathematics · JEE

Calculation of standard deviation, variance and mean deviation for grouped and ungrouped data Revision for JEE

12+ syllabus-aligned questions available

Quick answer

Revise Calculation of standard deviation, variance and mean deviation for grouped and ungrouped data by covering every subtopic once, drilling formulas, then solving 12+ timed MCQs with full solutions.

Use this Calculation of standard deviation, variance and mean deviation for grouped and ungrouped data revision checklist before mocks and the final exam. Reinforce concepts with 12+ syllabus-aligned MCQs on Goodmarks.

Revision checklist

  1. 1.Core idea: Calculation of standard deviation, variance and mean deviation for grouped and ungrouped data
  2. 2.Relates to other subtopics in Statistics and Probability
  3. 3.Mean, median, mode, standard deviation
  4. 4.Addition and multiplication probability
  5. 5.Master Calculation of standard deviation, variance and mean deviation for grouped and ungrouped data definitions and standard results
  6. 6.Solve 20 timed MCQs for Calculation of standard deviation, variance and mean deviation for grouped and ungrouped data

Syllabus context

Part of Statistics and Probability in JEE Main Mathematics.

Free sample questions

Attempt 8 free MCQs for Calculation of standard deviation, variance and mean deviation for grouped and ungrouped data. Unlock 4+ more with Pro.

Unlock full bank
Q1MathsUnit 13: Statistics and Probability
In an experiment with 15 observations on x,x, then following results were available: ∑x2=2830,∑x=170\sum x^{2}=2830, \sum x=170 One observation that was 20 was found to be wrong and was replaced by the correct value 30.30 . Then the corrected variance is:
Q2MathsUnit 13: Statistics and Probability
Find variance for following data:  Class 0−10−20−3010203040\begin{array}{lllll}\text { Class } & 0- & 10- & 20- & 30 \\ & 10 & 20 & 30 & 40\end{array} frequency ey 6 8
Q3MathsUnit 13: Statistics and Probability
The variance of observations 112,116,120,125,132 is
Q4MathsUnit 13: Statistics and Probability
The variance of the data 6,8,10,12,14,16,18,20,22,24 is
Q5MathsUnit 13: Statistics and Probability
Variance remains unchanged by change of
Q6MathsUnit 13: Statistics and Probability
The ages (in years) of a family of 6 members are 1,5,12,15,38 and 40 The standard deviation is found to be 15.9 After 10 years the standard deviation is
Q7MathsUnit 13: Statistics and Probability
Which of the following are dimensionless
Q8MathsUnit 13: Statistics and Probability
Assertion If rxy\boldsymbol{r}_{\boldsymbol{x} \boldsymbol{y}} i.e. r(x,y)=0.25,σx=0.1,σy=\boldsymbol{r}(\boldsymbol{x}, \boldsymbol{y})=\mathbf{0 . 2 5}, \boldsymbol{\sigma}_{\boldsymbol{x}}=\mathbf{0 . 1}, \boldsymbol{\sigma}_{\boldsymbol{y}}= 4,4, then byx=10b_{y x}=10 Reason byx=rσyσx\boldsymbol{b}_{\boldsymbol{y} \boldsymbol{x}}=\boldsymbol{r} \frac{\boldsymbol{\sigma}_{\boldsymbol{y}}}{\boldsymbol{\sigma}_{\boldsymbol{x}}}

Want unlimited Calculation of standard deviation, variance and mean deviation for grouped and ungrouped data practice?

Pro unlocks the full question bank, topic filters, and attempt history.

Get started freeView Pro plans

Popular questions in Calculation of standard deviation, variance and mean deviation for grouped and ungrouped data

Frequently asked questions

How should I revise Calculation of standard deviation, variance and mean deviation for grouped and ungrouped data before JEE?

Follow the checklist on this page, revise formulas daily, and attempt mixed MCQs every 2–3 days.

Related topics