Question 3 :
The algebric sum of the deviations of a frequency distribution from its mean is
Question 4 :
The statement "number of heads when flipping a coin" is an example of ______ variable.<br>
Question 7 :
______ variables measured with enough precision can often be considered continuous for practical purposes.<br>
Question 8 :
A _______ variable is a variable whose value is obtained by measuring.<br>
Question 9 :
In a frequency distribution, then mid value of a class intervals is 5 and the width of the class interval is 6 the lower limt of the class-interval is
Question 11 :
In the class interval $35 - 46$, the lower limit is _____<br/>
Question 12 :
The lower limit of class interval $0-5$ is _____ and upper limit is _____.
Question 13 :
How many times will you brush your teeth. The answer is an example of which type of variable?<br>
Question 14 :
The height of animals in park is not a _______ variable.<br>
Question 15 : The scores obtained by a group of participants in a game are shown in the table. A participant who scores more than 3 points receives a hamper. lf the number of participants who do not receive hampers is twice the number of those who do, find the value of y.<br/><table class="wysiwyg-table"><tbody><tr><td>Score</td><td>2</td><td>3</td><td>4</td><td>5</td></tr><tr><td>Number of participants</td><td>104</td><td>16</td><td>y</td><td>34</td></tr></tbody></table>
Question 16 :
In the frequency distributionthe mid value of a class is 10 and the width of the class is 6 The lower limit of the class is
Question 17 :
The value of $\pi$ upto $50$ decimal places is :$3.14159265358979323846264338327950288419716933993751$<br/>Which is the least occurring digit?
Question 19 :
The number of times a particular item occurs in a class interval is called its:<br/>
Question 23 :
Which one of the following groups has different class size from others?<br/>
Question 24 :
A quantity which can vary from one individual to another is called a variable.<br/>If true then enter $1$ and if false then enter $0$<br/>
Question 25 :
Class marks of a distribution are $47, 52, 57, 62, 72, 77$, and $82$ the third class interval from the end is<br/>
Question 26 :
State, which of the following variables are continuous and which are discrete :<br/>Daily temperature of a city is continuous<br/>If true then enter $1$ and if false then enter $0$<br/>
Question 27 :
Which one of the following variable is not a continuous variable?<br>
Question 28 :
Consider the data  :  $2, 3, 2, 4, 5, 6, 4, 2, 3, 3, 7, 8, 2, 2.$ The frequency of $2$ is ..............
Question 29 :
The class marks of a distribution are $11$, $14$, $17$, $20$, $23$, $26$ and $29$. Find the width of the class .<br/>
Question 30 :
The number of times a particular item occurs in aclass interval is called its
Question 31 :
If the class intervals are $10-19, 20-29, 30-39, ...$ then the upper limit of the first class-interval is
Question 32 :
Sizes of shoes are discrete variables,<br><br>If true then enter $1$ and if false then enter $0$<br>
Question 33 :
In a frequency distance with classes $0-10, 10-20$ and so on, the size of class interval is $10$. lower limit of fourth class is
Question 35 :
If a frequency distribution for the number of persons $\displaystyle x$ in a household is prepared with class intervals $(1- 4), (5-8), (9-12)$ etc., then the number of persons $\displaystyle x$ belonging to class interval $(5 -8)$ satisfies.
Question 36 :
Measurement of time, distance or weight are examples of ________ variable.<br/>
Question 39 :
Following are the ages of 10 teachers in a school : 32, 41, 28, 54, 35, 26, 23, 33, 38 and 40<br>(i) The range of their ages is
Question 40 :
What type of variable is this?<br>Number of bubbles in a fish tank.<br>
Question 42 :
$0-10, 10-20, 20-30 ...$  so on are the classes, the lower boundary of the class $20-30$ is _____
Question 43 : From the frequency table, the percentage of families with less than $3$ children is  $\displaystyle \frac{x}{40}\, \times\, 100$. Find the value of $'x'$.<br/><table class="wysiwyg-table"><tbody><tr><td>Number of children </td><td>$0$</td><td>$1$</td><td>$2$</td><td>$3$</td><td>$4$</td></tr><tr><td>Number of families</td><td>$2$</td><td>$5$</td><td>$11$</td><td>$15$</td><td>$7$</td></tr></tbody></table>
Question 44 :
The statement "weight of a cow" is an example of ______ variable.<br>
Question 45 :
Time taken to complete a task. The answer is an example of which type of variable?<br>
Question 47 :
The range of the data:<br/>$25, 18, 20, 22, 16, 6, 17, 15, 12, 30, 32, 10, 19, 8, 11, 20$   is<br/>
Question 52 :
If the passing marks are $41$, the no of students that failed is
Question 54 :
The class marks of a continuous distribution are:<br/>$1.04, 1.14, 1.24, 1.34, 1.44, 1.54$ and $1.64$<br/>Is it correct to say that the last interval will be $1.55 - 1.73$? Justify your answer.<br/>
Question 55 :
The lower limit and upper limit of an exclusive class interval are $15$ and $25$ respectively. Then the class mark is _____
Question 56 :
In a table showing L.C.F.D. and G.C.F.D; for a class whose upper boundary is $60$ has less than cumulative frequency of $35$ and a class whose lower boundary is $60$ has greater than cumulative frequency of $25$. Find the total frequency of the distribution.
Question 58 : Consider the following distribution:<br><table class="wysiwyg-table"><tbody><tr><td>More than or equal to 0</td><td>63</td></tr><tr><td>More than or equal to 10<br></td><td>58</td></tr><tr><td>More than or equal to 20</td><td>55</td></tr><tr><td>More than or equal to 30</td><td>51</td></tr><tr><td>More than or equal to 40</td><td>48</td></tr><tr><td>More than or equal to 50</td><td>42</td></tr></tbody></table>The frequency of the class 30-40 is
Question 59 :
A grouped frequency table with class intervals of equal sizes using $250-270$ ($270$ not included in this interval) as one of the class interval is constructed for the following data :<br/>$268, 220, 368, 258, 242, 310, 272, 342,$<br/>$310, 290, 300, 320, 319, 304, 402, 318,$<br/>$406, 292, 354, 278, 210, 240, 330, 316,$<br/>$406, 215, 258, 236.$<br/>The frequency of the class $310-330$ is:<br/>
Question 60 :
If the class marks of a frequency distribution are $20, 25, 30, 35, 40$ and $45$, find the classes and their width.<br/>
Question 61 :
The choices of the fruits of 42 students in a class are as follows:<br/>A, O, B, M, A, G, B, G, A, G, B, M. A, O, M, A, B, G, M, B, A, O, M, O, G, B, O, M, G, A, A, B, M, O, M, G, B, A, M, O, M, O,where A, B, G, M, and O stands for Apple, Banana, Grapes, Mango and Orange respectively.<br/> which fruit is liked<br/>by most of the students?
Question 62 : The median of the following data is <b>525</b>. Find the values of x and y, if the total frequency is <b>100</b>. Here, CI stands for class interval and Fr for frequency.<table class="wysiwyg-table"><tbody><tr><td>CI</td><td><b>0-100</b></td><td><b>100-200</b></td><td><b>200-300</b></td><td><b>300-400</b></td><td><b>400-500</b></td><td><b>500-600</b></td><td><b>600-700</b></td><td><b>700-800</b></td><td><b>800-900</b></td><td><b>900-1000</b></td></tr><tr><td><b>Fr</b></td><td><b>2</b></td><td><b>5</b></td><td><b>x</b></td><td><b>12</b></td><td><b>17</b></td><td><b>20</b></td><td><b>y</b></td><td><b>9</b></td><td><b>7</b></td><td><b>4</b></td></tr></tbody></table>
Question 63 : If mean of the following frequency distribution is $1.46$ then find the unknown frequency.<table class="wysiwyg-table"><tbody><tr><td><b>x:</b></td><td><b>0</b></td><td><b>1</b></td><td><b>2</b></td><td><b>3</b></td><td><b>4</b></td><td><b>5</b></td><td>Total</td></tr><tr><td><b>f:</b></td><td><b>46</b></td><td><b>...</b></td><td><b>...</b></td><td><b>25</b></td><td><b>10</b></td><td><b>5</b></td><td><b>200</b></td></tr></tbody></table>
Question 66 :
The following marks were obtained by the students in a test<br/>$81, 72, 90, 90, 86, 85, 92, 70, 71, 83, 89, 95, 85, 79, 62$.<br/>What is the range of the marks obtained?
Question 67 :
An orderly distribution of the raw data into certain specified categories is known as
Question 68 :
The class marks of a distribution are $62, 67,72, 77, 82$ and $87$. Find the class-size and class-limits.
Question 69 :
Which one of the following groups has differentclass interval from others?
Question 71 :
The range of $15, 14, x, 25, 30, 35$ is $23$. Find the least possible value of $x$.
Question 72 :
The width of each of five continuous classes in a frequency distribution is $5$ and the lower class-limit of the lowest class is $10$. The upper class-limit of the highest class is:<br/>
Question 73 :
The class marks of a frequency distribution are given as follows: $15, 20, 25, ...$<br/>The class corresponding to the class mark $20$ is:<br/>
Question 74 :
In the frequency distribution, 0 gives the graphical representation of _________.
Question 75 :
The width of each of nine classes in a frequency distribution is $2.5$ and the lower class boundary of the lowest class is $10.6$. Which one of the following is the upper class boundary of the highest class?
Question 76 :
The median and mode of frequency distribution are 525 and 500, then mean of same frequency distribution is -
Question 79 :
The distance (in km) of $40$ engineers from their residence to their place of work were found as follows:<br/>$5, 3, 10, 20, 25, 11, 13, 7, 12, 31, 19, 10, 12, 17, 18, 11, 32, 17, 16, 2, 7, 9, 7, 8,$ <br> $3, 5, 12, 15, 18, 3, 12, 14, 2, 9, 6, 15, 15, 7, 6, 12$<br/>How many engineers travelled distance more than $14$ and less than $26$?
Question 80 :
In the class intervals $10-20, 20-30$, the number $20$ is included in:<br/>
Question 83 :
Let $m$ be the mid-point and $l$ be the upper class limit of a class in a continuous frequency distribution. The lower class limit of the class is:<br/>
Question 87 :
Consider the following statements in respect of class intervals of grouped frequency distribution<br>1. Class intervals need not be mutually exclusive.<br>2. Class intervals should be exhaustive.<br>3. Class intervals need not be of equal width.<br>Which of the above statements are correct?<br>
Question 88 :
If $1 - 5, 6 - 10, 11 - 15, ...$  are the classes of a frequency distribution then the size of the class is _____
Question 89 :
If the lower boundary of an exclusive class is $25$ and the length of the class is $9$ then the upper boundary of the same class is _____
Question 90 :
In a frequency distribution, the mid value of a class is $10$ and the width of the class is $6$. The lower limit of the class is:<br/>
Question 91 :
The class mid-points in a  frequency distribution table are $125, 132, 139, 146$ and $153$. The class boundaries of the last class are<br/>
Question 92 :
In a frequency distribution, then mid value of a class intervals is $5$ and the width of the class interval is $6$ the lower limit of the class-interval is
Question 94 :
The class mark of a class is $25$ and if the upper limit of that class is $40$ then its lower limit is _____
Question 96 :
The Struges rule for determining the number of classes ($n$) in a frequency distribution with total frequency $N$ is
Question 97 : The frequency distribution of a variate X is as given below:<table class="wysiwyg-table"><tbody><tr><td>X</td><td>$2$</td><td>$3$</td><td>$4$</td><td>$5$</td><td>$6$</td></tr><tr><td>frequency</td><td>$2$</td><td>$7$</td><td>$14$</td><td>$22$</td><td>$30$</td></tr></tbody></table>What is the cumulative frequency of variate $X = 5$?
Question 98 :
If the class marks of a frequency distribution are $19.5, 26.5, 33.5, 40.5, 47.5, 54.5, 61.5$ then find the size of the class and the classes.<br/>
Question 101 :
If variable takes values 0,1,2,......, n with frequencies $q^n$. $\dfrac{n}{1}$ $q^{n-1}$ p , $\dfrac{n(n-1)}{1.2}$ $q^n-2$ $p^2$..........,$p^n$ where p+q = 1, then the mean is 
