Class Mark, Class Limit and Class Size

Q. The midpoint of a class is called its _____.

1. class mark
2. class size
3. class limit
4. class interval

Q. The difference between the upper class limit and the lower class limit is called ______.

1. class size
2. class interval
3. class mark
4. class limit

Q.

Find the upper limit and lower limit of the class interval $(60-69)$

1. lower class limit $=59.5,$ upper class limit $=69.5$
2. lower class limit $=59,$ upper class limit $=69.5$
3. lower class limit $=59,$ upper class limit $=69$
4. lower class limit $=59.5,$ upper class limit $=69$

Q. Class size is also known as ______.

1. class width
2. class interval
3. upper limit
4. lower limit

Q. Question 8
A grouped frequency table with class intervals of equal sizes using 250 – 270 (270 not included in this interval) as one of the class intervals is constructed for the following data.

268, 220, 368, 258, 242, 310, 272, 342

310, 290, 300, 320, 319, 304, 402, 318

406, 292, 354, 278, 210, 240, 330, 316,
406, 215, 258, 236.

The frequency of class 310 - 330 is:

A) 4
B) 5
C) 6
D) 7

Q. In a grouped frequency distribution, each group is called ______.

1. a class interval
2. range
3. observation
4. data

Q.

The mean in the following numbers 19, 21, 18, 17, 18, 22, 46 ______ is

1. 1

2. zero

3. 23

4. 27

Q.

1. Lower class limit = 139.5, Upper class limit = 150
2. Lower class limit = 140, Upper class limit = 150.5
3. Lower class limit = 140, Upper class limit = 160
4. Lower class limit = 140, Upper class limit = 150

Q.

The size of class interval 100-150 is:

1. 75

2. 50

3. 100

4. 25

Q.

Write the lower limit, upper limit and mid point of first class in each of the following cases.

1)5-10

10-15

Q.

Mean of 11, 10, 12, 12, 9, 10, 14, 12, 9 is ______ .

1. 20

2. 14

3. 10

4. 11

Q.

1. lower class limit = 70.5, upper class limit = 80.5
2. lower class limit = 70, upper class limit = 80
3. lower class limit = 69.5
   upper class limit = 80.5
4. lower class limit = 70.5
   upper class limit = 80.0

Q.

Explain the meaning of class interval.

Q. The class mark is equal to the average between the upper class limit and the ________.

1. lower class limit
2. upper class limit
3. class interval
4. class size

Q. In order to draw the histogram of the inclusive frequency distribution, it should be converted into exclusive form by applying a correction factor. A correction factor is calculated as

1. $\frac{d}{2}$
2. $\frac{m}{2}$
3. $\frac{l}{2}$
4. $\frac{n}{2}$

Q. For a grouped frequency distribution table the classes are:

(100 - 109) (110 - 119) (120 - 129) (130 - 139 ) (140 - 149).

Find the class size.

1. 9
2. 10
3. 11
4. 12

Q.

1. 14.5, 19.5
2. 14, 19
3. 15, 19
4. 15.5, 19.5

Q.

1. 117
2. 118.5
3. 117.5
4. 118

Q. What are the groups into which large data is condensed called?

1. Class limits
2. Classes
3. Class size
4. Class width

Q. For exclusive method the difference between the upper limit and the lower limit is called the _____.

1. class mark
2. class size
3. class interval
4. class limit

Q.

1. Lower class limit = 149.5, Upper class limit = 159.5
2. Lower class limit = 150, Upper class limit = 159
3. Lower class limit = 150.5, Upper class limit = 160.5
4. Lower class limit = 149, Upper class limit = 159

Q.

The lowest number in each class interval is known as ______ .

1. lower number

2. middle number

3. lower class limit

4. upper class limit

Q.

1. 214.5
2. 215
3. 215.5
4. 214

Q.

1. Upper Limit = 5, Lower Limit =10.5
2. Upper Limit = 5, Lower Limit = 10
3. Upper Limit = 5.5, Lower Limit =10.5
4. Upper Limit = 4.5, Lower Limit =10.5

Q. In grouping data there are two methods, one is the inclusive method and the other is ______.

1. the exclusive method.
2. common method
3. a grouped method
4. included method

Q.

1. 225
2. 200
3. 220
4. 230

Q.

1. 15
2. 12
3. 10
4. 14

Q. Match the given class interval with their class width.

1. 10
2. 20
3. 5
4. 50

Q.

1. grouped method
2. ungrouped method
3. inclusive method
4. exclusive method

Q.

1. exclusive method
2. inclusive method
3. grouped method
4. ungrouped method