Mid Value of Class

Q. The difference between the highest and lowest values of the observations is called

(a) frequency

(b) mean

(c) range

(d) class-intervals

Q.

The difference between the highest and the lowest observations of a data is called _________.

Q.

The upper limit of a class interval is 450 and the lower limit is half of it. What is the mid value of this interval?

1. 350

2. 337.5

3. 342.5

4. 335

Q.

The Mid value of class range is 142. The Upper limit of the class is 164 , What will be the lower limit ?

1. 130

2. 125

3. 120

4. 140

Q.

The mid value of class range is 47.5 and the lower limit of the class range is 30. What will be the upper limit of this class range ?

1. 60

2. 62.5

3. 65

4. 67.5

Q. The ages (in years) of some teachers of a school are given in the box.
26, 32, 38, 41, 26, 31, 35, 33, 26, 37
What is the range of the ages of the teachers?

1. 15 years
2. 41 years
3. 26 years
4. 32 years

Q. The mid value of a class interval is $42$. If the class size is $10$ then the upper and lower limits of the class are:

1. $47$ and $37$
2. $37$ and $47$
3. $37.5$ and $47.5$
4. $47.5$ and $37.5$

Q. The Mid value of class is 142. If the Upper limit is 164, what will be the lower limit?

1. 120
2. 130
3. 125
4. 140

Q. The range of the dataset 3, 4, 4, 5, 9, 11 is and the frequency of the observation 5 in the dataset is .

1. 1
2. 5
3. 8
4. 6
5. 3

Q.

Following are the observations made by ram 7, 7, 7, 7, 7, x. If the range of the given observations is 0, then what is the value of x.

1. 5

2. 7

3. 8

4. 2

Q.

What will be the class range if the mid value of a class range is 165 and the distance between classes is 30?

1. 160 - 170

2. 150 - 180

3. 155 - 175

4. 140 - 190

Q.

Consider the marks obtained by 18 students (out of 100 marks) in a science quiz

30 40 50 35 55 60 40 30 60

75 60 30 40 60 55 35 50 40

What is the frequency of the least marks obtained in the class?

1. 5

2. 3

3. 6

4. 4

Q.

If the classes in a frequency table are divided into groups of 5 and the range of the table is from 10 - 35, find the Mid - value of the class which lies at the centre.

1. 25

2. 27.5

3. 17.5

4. 22.5

Q. The frequency of an entry is the number of times the entry occurs in the dataset.

1. False
2. True

Q.

Which of the following is a measure of central tendency?

1. Frequency

2. Class interval

3. Mean

4. Class