Measures of Central Tendency for Grouped Data when class Intervals are not given

Q.

In two factories A and B, located in the same industrial area, the average weekly wages in rupees and the Standard Deviation are as follows:

Factory	Average of wages in Rs.	S.D. of wages in Rs.
A B	34.5 28.5	6.21 4.56

Determine which factory has greater variability in individual wages?

Q.

In two factories A and B, located in the same industrial area, the average weekly wages in rupees and the Standard Deviation are as follows:

Factory	Average of wages in Rs.	S.D. of wages in Rs.
A B	34.5 28.5	6.21 4.56

Determine which factory has greater variability in individual wages?

Q.

Whichofthefollowingisnotameasureofcentraltendency?

1. Range

2. Mode

3. Mean

4. Median

Q.

Which of the following is not a measure of central tendency?

1. Mean

2. Median

3. Mode

4. Histogram

Q.

Which of the following is true?

1. Mode is a better indication than mean

2. Mean and mode values are always equal

3. Mean and mode are measures of central tendency

4. Mean is a better indication than mode