Test Details

Statistics

Jan 02, 9:00 PM

120 minutes

Jan 02, 11:00 PM

148.0 marks

MCQ

37 questions

Shefali Singha

I am a Mathematics teacher . I used to teach mathematics in St. Xavier's School, Jamshedpur.

Class Details

Mathematics

Class-11

Mathematics

More from Shefali Singha

(20)

Test

Mirror and Water Images

class-11th

Mathematics

0 Likes

0 Views

Shefali Singha

Oct 11, 2023

Test

Mirror and Water Images

class-11th

Mathematics

0 Likes

2 Views

Shefali Singha

Oct 10, 2023

Test

Vocabulary

class-1st

Mathsandenglish

0 Likes

2 Views

Shefali Singha

Oct 01, 2023

Test

Control and Coordination

class-10th

Mathematics

0 Likes

0 Views

Shefali Singha

Sep 12, 2023

Test

Real Numbers, Polynomials and 13 others

class-10th

Mathematics

0 Likes

1 Views

Shefali Singha

Aug 22, 2023

Test

Life Processes

class-10th

Mathematics

0 Likes

1 Views

Shefali Singha

Aug 19, 2023

Test

Reading Comprehension, Punctuation and 13 others

class-10th

Mathematics

0 Likes

0 Views

Shefali Singha

Aug 19, 2023

Test

Addition and Subtraction (Fun With Give And Take), Addition and Subtraction (Give And Take) and 5 others

class-3rd

Allsubjects

0 Likes

2 Views

Shefali Singha

Aug 17, 2023

Test

Data Handling (Smart Charts), Decimals (Tenths and Hundredths) and 4 others

class-4th

Maths

0 Likes

1 Views

Shefali Singha

Aug 11, 2023

Test

Matter in Our Surroundings

class-9th

Maths

0 Likes

1 Views

Shefali Singha

Aug 08, 2023

Test

Living and Non-Living Things, Human Body and 1 others

class-3rd

Allsubjects

0 Likes

2 Views

Shefali Singha

Aug 06, 2023

Test

Adjectives

class-3rd

Allsubjects

0 Likes

0 Views

Shefali Singha

Aug 06, 2023

Test

Matter in Our Surroundings

class-9th

Maths

0 Likes

1 Views

Shefali Singha

Aug 06, 2023

Test

Fractions and Decimals, Exponents and Powers

class-7th

Maths

0 Likes

2 Views

Shefali Singha

Jul 30, 2023

Test

Integers, Fractions and Decimals and 1 others

class-7th

Maths

0 Likes

2 Views

Shefali Singha

Jun 15, 2023

Test

Light - Reflection and Refraction

class-9th

Maths

0 Likes

1 Views

Shefali Singha

Jun 15, 2023

Test

Measurement (The Fish Tale)

class-4th

Maths

0 Likes

1 Views

Shefali Singha

Jun 10, 2023

Test

Fractions and Decimals

class-7th

Maths

0 Likes

1 Views

Shefali Singha

May 23, 2023

Test

Integers

class-7th

Maths

0 Likes

1 Views

Shefali Singha

May 22, 2023

Test

Integers, Fractions and Decimals

class-6th

Maths

0 Likes

0 Views

Shefali Singha

May 11, 2023

Recommended Content

(20)

Homework

statistics

class-11th

Mathematics

0 Likes

15 Views

Priyanka Mohapatra

Jan 15, 2022

Test

Statistics

class-11th

Maths

0 Likes

8 Views

Sahil Bansal

Mar 09, 2022

Test

Statistics

class-11th

Mathematics

0 Likes

8 Views

Adarsh pal singh

Jan 29, 2022

Test

Statistics

class-11th

Mathematics

0 Likes

1 Views

Adarsh pal singh

Jan 27, 2022

Test

Statistics

class-11th

Mathematics

0 Likes

1 Views

Suraj

Jan 29, 2022

Homework

Statistics

class-11th

Mathematics

0 Likes

1 Views

Amit Giri

Jan 26, 2022

Homework

Statistics

class-11th

Mathematics

0 Likes

1 Views

Amit Giri

Jan 14, 2022

Test

Statistics

class-11th

Mathematics

0 Likes

25 Views

Shazia Khan

Nov 24, 2021

Test

Statistics

class-11th

Mathematics

0 Likes

14 Views

Amritesh Singh

Nov 20, 2021

Homework

Statistics

class-11th

Mathematics

0 Likes

13 Views

M.Sankari M.Sankari

Nov 19, 2021

Homework

Statistics

class-11th

Mathematics

0 Likes

9 Views

Priyanka Mohapatra

Jan 14, 2022

Test

Statistics

class-11th

Maths

0 Likes

14 Views

Rajeshbhai Patel

Dec 05, 2021

Test

Statistics

class-11th

Math

0 Likes

17 Views

manoj kumar

Nov 02, 2021

Test

Statistics,Statistics - NCERT

class-11th

মযথ

0 Likes

4 Views

Md Omar Faruk

Jan 28, 2022

Test

Statistics

class-11th

Maths

0 Likes

15 Views

Rajeshbhai Patel

Dec 05, 2021

Test

Statistics

class-11th

Maths

0 Likes

10 Views

Rajeshbhai Patel

Dec 16, 2021

Homework

Statistics

class-11th

Jaikaransingh

0 Likes

2 Views

Jaikaran Singh

Jan 17, 2022

Test

Statistics

class-11th

Maths

0 Likes

1 Views

Poonam Yadav

Jan 19, 2022

Test

Statistics

class-11th

Chemistry

0 Likes

1 Views

Sunita

Jan 20, 2022

Test

Statistics

class-11th

Computerscience

0 Likes

0 Views

Rajeev Sharma

Jan 18, 2022

Question Text

Question 1 :
The exam scores of all $500$ students were recorded and it was determined that these scores were normally distributed. If Jane's score is $0.8$ standard deviation above the mean, then how many, to the nearest unit, students scored above Jane?(Area under the curve below $z=0.8 \ is \ 0.7881$)

Question 2 :
If x is the average(arithmetic mean) of $5$ consecutive odd integers, what is the median of integers?

Question 3 :
If coefficient of range is $0.092$ and the largest value is $71$, the range is?

Question 4 :
In an experiment with $10$ observations on $x,\displaystyle \sum { x=60, } \displaystyle \sum { { x }^{ 2 } } =1000$ one observation that was $20$ was found to be wrong and was replaced by the correct value $30$ then the correct variance is 

Question 7 :
The average marks of 10 students in a class is 60 with standard deviation 4 while the average marks of other 10 students is 40 with standard deviation 6. If all the 20 students are taken together, their standard deviation will be

Question 8 :
If the sum of mean and variance of $B.D$ for $5$ trials is $1.8$, the binomial distribution is 

Question 10 :
If the variance of the data 2,4,5,6,8,17 is 23,33, then variance of 5,11,14,17,23,50 is ________________.

Question 11 :
If mean deviation through median is 15 and median is 450, then coefficient of mean deviation is  

Question 13 :
The standard deviation of a varibale x is$\sigma $. The standard devaition of the varibale $\frac { ax+b }{ c } $ where a, b, c are constant is _____________________.

Question 14 :
The standard deviation of $1, 2, 3, 4, 5, 6, 7$ is?

Question 17 :
For two data sets, each of size $ 5$, the variances are given to be $4$ and $5$ and the corresponding means are given to be $2$ and $4,$ respectively. The variance of the combined data set is <br/>

Question 19 :
$\sum _{ i=1 }^{ 10 }{ { \left( { X }_{ i }-10 \right)  }^{ 2 }=2000 } \sum _{ i=1 }^{ 10 }{ { X }_{ i }-10 } =100$ then the standard deviation of data set ${X}_{i}$.

Question 20 :
For a series the information available is $n=10$, $\displaystyle\sum x=60, \displaystyle\sum x^2=1000$. The standard deviation is?

Question 21 :
The standard deviation of $15$ terms is $6$ and each item is decreased by $1$. Then the standard deviation of new data is?

Question 23 :
The sum of the squares of deviations of 10 items about mean 50 is 250 .The coefficient of variation is 

Question 24 :
If coefficient of range is $0.092$ and the largest value is $71$, the range is?

Question 26 :
The greatest value of a collection of data is $72$ and the least value is $28$. Then the coefficient of range is.<br>

Question 27 :
The greatest value of a collection of data is $72$ and the least value is $28$. Then the coefficient of range is.<br>

Question 28 :
For r.v. X whose p.m.f. is<br><table class="wysiwyg-table"><tbody><tr><td>X</td><td>0</td><td>1</td><td>2</td></tr><tr><td>p(X=)x</td><td>${ b }^{ 2 }$</td><td>2ab</td><td>${ a }^{ 2 }$</td></tr></tbody></table>Std. deviation of $X i.e.\sigma =$

Question 29 :
The scores of a batsman in ten innings are: $38, 70, 48, 34, 42, 55, 63, 46, 54, 44$. Find the mean deviation about median.

Question 30 :
Find the variance of the series 5, 8, 11, 14 and 17.....

Question 31 :
The probability distribution of a random variable $X$ is given below:<br/><table class="wysiwyg-table"><tbody><tr><td>$X=x$</td><td>0</td><td>1</td><td>2</td><td>3</td></tr><tr><td>$P(X=x)$</td><td>$\frac{1}{10}$</td><td>$\frac{2}{10}$</td><td>$\frac{3}{10}$</td><td>$\frac{4}{10}$</td></tr></tbody></table>Then the variance of $X$ is

Question 32 :
The mean deviation about the mean of the following data is?<br><table class="wysiwyg-table"><tbody><tr><td>$x_1$</td><td>3</td><td>9</td><td>17</td><td>23</td><td>27</td></tr><tr><td>$f_1$</td><td>8</td><td>10</td><td>12</td><td>9</td><td>5</td></tr></tbody></table>

Question 33 :
The standard deviation $\sigma$ of the first $N$ natural numbers can be obtained using which one of the following formula?

Question 34 :
If the standard deviation of $x_1,x_2,...,x_n$ is 3.5 then the standard deviation of $2x_1-3,2x_2-3,...,2x_n-3$ is

Question 35 :
Mean and standard deviation of a data are $48$ and $12$ respectively. The coefficient of variation is.<br>

Question 37 :
Standard deviation of the first $2$n + $1$ natural numbers is 

More from Shefali Singha

Recommended Content

Learn from Anywhere on Any Device