Class-11th IP Ch-5 Understanding Data

Choose the correct answer of the following: 1. Number which occurs most frequently in a set of number is:

• mean

• median

• mode

• none of the above

The standard deviation of population is denoted by

• W

• w

• s

• S

The value that has half of the observation above it and half the observation is called the:

• range

• median

• mean

• mode

The difference between the highest and the lowest observation is called the:

• range

• median

• mean

• mode

The median of 7,6,4,8,2,5,11 is:

• 6

• 12

• 11

• 4

Which of the following can not be determined graphically?

• mean

• median

• mode

• none of these

Which one of the following is a type of data?

• Structured data

• Unstructured data

• Semi structured data

• all of the above

Fill in the blanks: 1. Raw facts and figures are known as -------------

Fill in the blanks: 2. processed data is known as ----------------

Fill in the blanks: 3. The different between the lowest and highest values is called of values---------------