Question 2 : Find the mode for the following data :<br><table class="wysiwyg-table"><tbody><tr><td>Term<br></td><td>18<br></td><td>22<br></td><td>26<br></td><td>30<br></td><td>34<br></td><td>38<br></td></tr><tr><td>Frequency<br></td><td>3<br></td><td> 5<br></td><td>10<br></td><td>2<br></td><td> 8<br></td><td>2<br></td></tr></tbody></table><br>
Question 3 : Consider the following distribution of daily wages of 50 workers of a factory.<br><table class="wysiwyg-table"><tbody><tr><td>Daily wages (in Rs.)<br></td><td>Number of workers<br></td></tr><tr><td>100-120<br></td><td>12<br></td></tr><tr><td>120-140<br></td><td>14<br></td></tr><tr><td>140-160<br></td><td>8<br></td></tr><tr><td>160-180<br></td><td>6<br></td></tr><tr><td>180-200<br></td><td>10<br></td></tr></tbody></table>Find the mean daily wages of the workers of the factory by using an appropriate method.<br>
Question 4 :
Identify in which ideal measure of central tendency used to find the middle value, if the data are ordinal?<br>
Question 6 :
Kavita obtained 16,14,18 and 20 marks (out of 25) in Maths in weekly tests in the month of Jan 2000; then mean marks of Kavita is
Question 7 :
The median of a given frequency distribution is found graphically with the help of __________.
Question 8 :
The daily sale of milk (in litres) in a ration shop for eight days is as follows-<br>$60, 40, 10, 40, 4, 70, 30$ and $10$. The average daily sale is-
Question 10 :
Mean of marks obtained by $10$ students is $30$.<br>Marks obtained are $25,30,21,55,47,10,15,x,45,35$.<br>Find the value of $x$.
Question 11 :
Find the median of the following numbers:<br/>$42, 67, 33, 79, 33, 89, 21$
Question 12 : Find the upper limit of the median class from the given frequency distribution table.<table class="wysiwyg-table"><tbody><tr><td>Class</td><td>$0-5$</td><td>$6-11$</td><td>$12-17$</td><td>$18-23$</td><td>$24-29$</td></tr><tr><td>Frequency</td><td>$03$</td><td>$10$</td><td>$15$</td><td>$8$</td><td>$11$</td></tr></tbody></table>
Question 13 :
For a given data with $50$ observation the less than ogive and the more than ogive intersect at $(15.5, 20)$, the median of the data is <br/><br/>
Question 15 :
For a certain frequency distribution, the value of Mean is $101$ and Median is $100$. Find the value of Mode.
Question 18 :
The median of a given frequency distribution is found graphically with the help of
Question 19 : The time taken by a group of people to run across the street is given below. Find the median.<br><table class="wysiwyg-table"><tbody><tr><td>Time(min)<br></td><td>$10$<br></td><td>$20$<br></td><td>$25$<br></td><td>$30$<br></td><td>$45$<br></td></tr><tr><td>People<br></td><td>$1$<br></td><td>$2$<br></td><td>$5$<br></td><td>$6$<br></td><td>$7$<br></td></tr></tbody></table><br>
Question 23 : Edwin's scores on his final exams are listed in the table. Find the median.<br/><table class="wysiwyg-table"><tbody><tr><td>Maths<br/></td><td>Science<br/></td><td>History<br/></td><td>Geography<br/></td><td>English<br/></td><td>French<br/></td></tr><tr><td>$90$<br/></td><td>$86$</td><td>$89$<br/></td><td>$75$<br/></td><td>$60$<br/></td><td>$99$<br/></td></tr></tbody></table>
Question 24 :
The mean salary paid per week to $1000$ employees of an establishment was found to be Rs. $900$. Later on, it was discovered that the salaries of two employees were wrongly recorded as Rs. $750$ and Rs. $365$ instead of Rs. $570$ and Rs. $635$. Find the corrected mean salary.
Question 25 :
What is the average (arithmetic mean) in degrees of the internal angles in a rectangle? 
Question 28 :
The median of given observations arranged in ascending order in $25$. Find the value of p.<br>$11, 13, 15, 19, p + 2, p + 4, 30, 35, 39, 46$
Question 29 :
Emmy did a survey of how many games each of $20$ friends owned, and got the following data: $5, 7, 12, 13, 4, 6, 8, 12, 9, 16, 13, 12, 5, 13, 7, 17, 3, 9, 12, 14.$ Find the mean.<br/>
Question 30 :
The median for grouped data is formed by using the formula, $median =l + \left ( \dfrac{\frac{n}{2}-cf}{f} \right ) \times h$<br/>
Question 31 :
Assertion: If the value of mode and mean are 60 and 66 respectively, then the value of median is 64.
Reason: Median $=\dfrac{1}{2}$(mode + 2 mean)
Question 33 :
For a certain frequency distribution, the values of Mean and Mode are $54.6$ and $54$ respectively. Find the value of median.
Question 34 :
The mean and median of the data are respectively $20$ and $22$. The value of mode is:<br/>
Question 35 :
Fill in the blank$:$<br>An Ogive representing a cumulative frequency distribution of 'less than' type is called a $_________$.
Question 36 :
The median of a set of $9$ distinct observations is $20.5$. If each of the largest $4$ observations of the set is increased by $2$, then the median of the new set
Question 37 :
If the difference of mode and median of a data is 24 then the difference of median and mean is
Question 39 :
The average value of the median of $2,8,3,7,4,6,7$ and the mode of $2,9,3,4,9,6,9$ is
Question 40 :
The mean and median of same data are 24 and 26 respectively. The value of mode is :<br>
Question 41 :
The curve obtained by joining the points, whose $x$-coordinates are the upper limits of the class-intervals and $y$-coordinates are corresponding cumulative frequencies is called -<br/>
Question 42 :
In a frequency distributions, mode is $7.88$, mean is $8.32$, then median is 
Question 43 :
If the ratio of mode and median of a distribution is $6:5$, then the ratio of its mean and median is
Question 44 :
Calculate the mean where mode and median are given as $12$ and $5$ respectively.<br/>
Question 48 :
Find the mean of the following data: Range of first $n$ natural numbers range of negative integers from $-n$ to $-1$ (where $-n < - 1$), range of first $n$ positive even integers and range of first $n$ positive odd integers
Question 49 : The median of the following data is $525$. Find the values of $x$and $y$, if the total frequency is $100 $<table class="wysiwyg-table"><tbody><tr><td>Class interval</td><td>Frequency</td></tr><tr><td>$0-100$</td><td>$2$</td></tr><tr><td>$100-200$</td><td>$5$</td></tr><tr><td>$200-300$</td><td>$x$</td></tr><tr><td>$300-400$</td><td>$12$</td></tr><tr><td>$400-500$</td><td>$17$</td></tr><tr><td>$500-600$</td><td>$20$</td></tr><tr><td>$600-700$</td><td>$y$</td></tr><tr><td>$700-800$</td><td>$9$</td></tr><tr><td>$800-900$</td><td>$7$</td></tr><tr><td>$900-1000$</td><td>$4$</td></tr></tbody></table>
Question 50 : The mode of the following data is $50$. Calculate the value of X.<br/><table class="wysiwyg-table"><tbody><tr><td>Marks</td><td>$50-60$</td><td>$60-70$</td><td>$70-80$</td><td>$80-90$</td></tr><tr><td>Students</td><td>$1$</td><td>$2$</td><td>$x$</td><td>$4$</td></tr></tbody></table>
