CBSE Class 10-Mathematics: Chapter – 14 Statistics Part 6 (For CBSE, ICSE, IAS, NET, NRA 2022)

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Question 2:

For the following grouped frequency distribution, find the mode.

Find the Mode
Class

Answer:

Since the maximum frequency and it corresponds to the class

Modal class

Question 3:

Construct the cumulative frequency distribution of the following distribution:

Construct the Cumulative Frequency Distribution
Class

Answer:

The required cumulative frequency distribution of the given distribution is given below:

The Required Cumulative Frequency Distribution of the Given Distribution is Given Below
ClassFrequencyCumulative Frequency

Question 4:

The median and mode of a distribution are and respectively, find its mean.

Answer:

We know that Mean Mode (Median-Mode)

Question 15:

The marks distribution of students in a mathematics examination are given below

The Marks Distribution of 30 Students in a Mathematics Examination
Class Interval

Answer:

Since the maximum frequency and it corresponds to the class .

The modal class

Here,

We know that mode Mo is given by

Thus, Mode marks

Question 6:

Find the mode of this data.

Construct the cumulative frequency distribution of following distribution:

Construct the Cumulative Frequency Distribution
Marks

Answer:

The required cumulative frequency distribution of the given distribution is given below.

The Required Cumulative Frequency Distribution
MarksNo. of StudentsCumulative Frequency

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