Sample QuestionsStatistics questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Arrange the data in descending order : 2.3, 4.6, 1.2, 0.4, 3.5, 9.7, 6.1, 4.8, 0.8, 1.0
Arrange the data in descending order : 15, 3, 0, 11, 7, 2, 23, 14, 29, 5, 1, 17
Arrange the data in ascending order : 5.7, 9.2, 3.1, 4.6, 1.8, 10.4, 2.5, 0.9, 1.2
Arrange the data in ascending order : 8, 3, 11, 15, 1, 7, 16, 25, 9, 4
Construct a frequency table for the data :
13, 25, 19, 16, 8, 30, 27, 6, 0, 34, 40, 11, 4, 17
Construct a frequency table for the data :
152, 165, 172, 144, 135, 156, 175, 140, 132, 150, 153, 147
Construct a frequency table for the data :
7, 8, 6, 5, 6, 7, 7, 9, 8, 10, 7, 6, 7, 8, 8, 9, 10, 5, 7, 8, 7, 6
Construct a frequency table for the data :
3, 2, 5, 4, 1, 3, 2, 2, 5, 3, 1, 2, 1, 1, 2, 2, 3, 4, 5, 3, 1, 2, 3
The heights of 45 students measured to the nearest centimetre are given below :
$
\begin{array}{l}
155,166,159,161,158,154,153,159,157,152,160,157,158,170 \\
152,151,162,164,171,154,165,161,150,168,162,154,160,170,163,164 \\
165,169,165,155,157,158,160,161,156,153,150,165,167,169,172
\end{array}
$
Prepare a frequency table taking class intervals
$
150-155,155-160,160-165,165-170,170-175 .
$
View full solution →The daily income (in rupees) of 30 workers is given below :
$
\begin{array}{l}
83,96,91,80,97,111,90,83,112,120,103,77,82,90,70 \\
68,89,85,78,105,94,97,90,89,102,113,90,106,70,84
\end{array}
$
Construct a frequency table using groups
$65-75,75-85,85-95,95-105,105-115$, $115-125$.
View full solution →The weights (in kg) of 30 students are given below :
$
\begin{array}{l}
48,55,30,43,41,36,48,37,34,38,46,42,38,52,37 \\
34,40,42,50,37,35,46,42,45,43,37,39,45,48,46
\end{array}
$
Form the grouped frequency table by taking class-intervals
$30-35,35-40,40-45,45-50$, $50-55$.
View full solution →The fine imposed (in rupees) on 40 pupils for being absent is given below :
$
\begin{array}{l}
18,8,12,6,8,16,12,5,23,2,16,23,2,10,20,12,9,7,0,5 \\
3,6,27,21,19,15,20,24,2,16,14,8,23,24,10,14,3,8,11,2
\end{array}
$
Present the data in the form of frequency distribution table by taking class intervals $0-5,5-10,10-15,15-20,20-25$.
View full solution →The marks out of 50, obtained by 30 students of a class in an examination are given below :
$
\begin{array}{l}
40,12,46,37,17,27,30,6,2,23,19,39,25,5,33 \\
19,21,12,41,17,12,19,17,8,10,1,9,21,13,48
\end{array}
$
Arrange them in ascending order and present it as a grouped data, by taking class-intervals $0-10,10-20,20-30,30-40,40-50$
View full solution →If the lower and upper limits of a class interval be 11.5 and 21.5 respectively, then the class-interval is __________.
If the upper and lower limits of a class interval be 18 and 11 respectively, then the class-interval is __________.
Class-size of the class interval 20 - 30 is __________.
Upper limit of the class interval 16 - 25 is __________.
Lower limit of the class interval 14 - 22 is __________.