Sample QuestionsTabular Representation of Statistical Data questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Let l be the lower class limit of a class-interval in a frequency distribution and m be the mid point of the class. Then, the upper class limit of the class is:
Answer: C.
View full solution →The number of times a particular item occurs in a given data is called its:
Answer: B.
View full solution →The following marks were obtained by the students in a test:
$81, 72, 90, 90, 86, 85, 92, 70, 71, 83, 89, 95, 85, 79, 62$
The range of the marks is:
Answer: D.
View full solution →The difference between the highest and lowest values of the observations is called:
Answer: C.
View full solution →The difference between the upper and the lower class limits is called:
Answer: B.
View full solution →The monthly pocket money of six friends is given below:
$Rs. 45, Rs. 30, Rs. 40, Rs. 25, Rs. 45.$
$i.$ What is the lowest pocket money?
$ii.$ What is the highest pocket money?
$iii.$ What is the range?
$iv.$ Arrange the amounts of pocket money in ascending order.
View full solution →Write the class-size in the following: $5-5.01, 5.01-5.02, 5.02-5.03.$
View full solution →Write the class-size in the following: $10 -19, 20-29, 30-39$
View full solution →Explain the meaning of the following terms: Class-mark.
Explain the meaning of the following terms: Frequency.
What do you understand by the word “statistics” in: Singular form.
What do you understand by the word “statistics” in: Plural form.
The ages of ten students of a group are given below. The ages have been recorded in years and months: $8-6, 9-0, 8-4, 9-3, 7-8, 8-11, 8-7, 9-2, 7-10, 8-8$
$i.$ What is the lowest age?
$ii.$ What is the highest age?
$iii.$ Determine the range?
View full solution →Explain the meaning of the following terms:
True class limits.
Define cumulative frequency distribution.
What are:
$i.$ Primary data,
$ii. $Secondary data?
Which of the two$-$the primary or the secondary data$-$is more reliable and why?
View full solution →Describe some fundamental characteristics of statistics.
The monthly wages of $30$ workers in a factory are given below: $83.0, 835, 890, 810, 835, 836, 869, 845, 898, 890, 820, 860, 832, 833, 855, 845, 804, 808, 812, 840, 885, 835, 836, 878, 840, 868, 890, 806, 840, 890$. Represent the data in the form of a frequency distribution with class size $10$.
View full solution →Write the class size and class limits in the following: $12.5, 17.5, 22.5, 27.5, 32.5, 37.5, 42.5, 47.5$.
View full solution →The number of runs scored by a cricket player in $25$ innings is as follows$: \ 26, 35, 94, 48, 82, 105, 53, 0, 39, 42, 71, 0, 64, 15, 34, $$15, 34, 6, 71, 0, 64, 15, 34, 15, 34, 67, 0, 42, 124, 84, 54, 48, 139, 64, 47$
$i.$ Rearrange these runs in ascending order.
$ii.$ Determine the player, is highest score.
$iii.$ How many times did the player not score a run?
$iv.$ How many centuries did he score?
$v.$ How many times did he score more than $50$ runs?
View full solution →Given below is a cumulative frequency distribution table showing ages of the people living in a locality:
|
Age in years
|
No. of years
|
|
Above $108$
|
$0$
|
|
Above $96$
|
$1$
|
|
Above $84$
|
$3$
|
|
Above $72$
|
$5$
|
|
Above $60$
|
$20$
|
|
Above $48$
|
$158$
|
|
Above $36$
|
$427$
|
|
Above $24$
|
$809$
|
|
Above $12$
|
$1026$
|
|
Above $0$
|
$1124$
|
Prepare a frequency distribution table. View full solution →The final marks in mathematics of $30$ students are as follows$:\ 53, 61, 48, 60, 78, 68, 55, 100, 67, 90, 75, 88, 77, 37, 84, 58, 60, 48, 62, 56, 44, 58, 52, 64, 98, 59, 70, 39, 50, 60$
$i.$ Arrange these marks in ascending order $30$ to $39$ one group $40$ to $49$ second group etc.
Now answer the following:
$ii.$ What is the lowest score?
$iii.$ What is the highest score?
$iv.$ What is the range?
$v.$ If $40$ is the pass mark how many failed?
$vi.$ How many have scored $75$ or more?
$vii.$ Which observations between $50$ and $60$ have not actually appeared?
$vii.$ How many have scored less than $50$?
View full solution →