Distinguish between interval and ratio variables.
Important Questions on Statistics
Question
Milka is the niece of Lali. Can we find out the present age of Lali on the basis of statements given below?
Statement
I. The mean of their age is 28.
II. Lali was born in 1976.
You have a question followed by two statements. Which of the following statement(s) is/ are required/sufficient to answer the question ?
Question : What is the total weight of 20 boxes of vegetables ? Each of them is of equal weight.
I. Of 10 boxes, one third of each box weighs 10kg.
II. Total weight of 6 boxes is 60kg more than that of 4 boxes.
Question:
What will be the code of HOME
Statements:
1. The code of “This is my home” is “Te e me huch”
2. The code of “home sweet home” is “huch tee huch”
Question
What is the number of pyramids in the box?
Statements
I. There are some yellow, red, and blue colored pyramids in the box.
II. There are 6 yellow, 7 red and some blue coloured pyramids in the box.
Read the question below and decide which statement/s is/ are sufficient to answer the question.
Question:
Mridual has four almirahs and 24 books. She wants to organize her books. How many books can be kept in one almirah?
Statement:
1. In shelf one twice the number of books can be kept in comparison to shelf two.
2. 12 books can be kept in shelf four.
3. Only 6 books can be kept in shelf three.
The value of up to decimal places is given below:
Study the following frequency distribution table and answer the question given below.
Frequency Distribution of Daily Income of workers of a factory
| Class Interval (Daily Income in ) |
Frequency (Number of Workers) |
| Total |
Which two classes have the same frequency?
Study the following frequency distribution table and answer the question given below.
Frequency Distribution of Daily Income of workers of a factory
| Class Interval (Daily Income in ) |
Frequency (Number of Workers) |
| Total |
Which class has the lowest frequency?
Study the following graph carefully and answer the given questions. Preferences of students in a school is playing different games over the years.
In which years was the ratio of students playing football : students playing cricket was ?
Thirty children were asked about the number of hours they watched TV program in the previous week. The results were found as follows:
.
How many children watched television for or more hours a week?
| class | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 |
|---|---|---|---|---|---|---|
| frequency |
| Column A | Column B |
|---|---|
| (A) class size of data | (a) |
| (B) lower limit of fifth class | (b) |
| (C) upper limit of third class | (c) |
| (D) class mark of second class | (d) |
| (E) frequency of sixth class | (e) |
Study the following frequency distribution table and answer the question given below.
Frequency Distribution of Daily Income of workers of a factory
| Class Interval (Daily Income in ) |
Frequency (Number of Workers) |
| Total |
What is the upper limit of the class interval ?
Consider the given question and decide which of the following statement is sufficient to answer the question.
Does the children's ability to grasp ideas in school depend on their intelligence?
Statements:
1. Intelligence is unaffected by bad teaching.
2. Poor children do not perform well in school.
Study the following graph carefully and answer the given question.
Preferences of students in a school is playing different games over the years.
From which onwards did football start gaining more popularity?
Study the following graph carefully and answer the given question. Preferences of students in a school is playing different games over the years.
In all the years, how many more people have preferred to play cricket than football?
The pie-chart given here shows expenditure incurred by a family on various items and their savings, which amount to in a month. Study the chart.
The more amount spent on food than on housing is
