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

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Question 18:

A student noted the numbers of cars passing through a spot on a road for periods each of minutes and summarized in the table given below. Find the mode of the data.

A Student Noted the Numbers of Cars Passing through a Spot
No. of cars
Frequency

Answer:

Since the maximum frequency

And it corresponds to the class

Modal class

Here,

We know that mode is given by

Question 19:

Construct the cumulative frequency distribution of the following distribution:

Construct the Cumulative Frequency Distribution of the Following Distribution
consumption (units)
Consumers

Answer:

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

The Required Accumulative Frequency Distribution
Monthly consumption (in units)No. of consumes Cumulative frequency

Question 20:

If the values of mean and median are and , what will be the value of mode?

Answer:

We know that

Mode Median mean

Mean

3 Mark Questions

Question 1:

The following table shows the weekly wages drawn by number of workers in a factory, find the median of the following data.

The Weekly Wages Drawn by Number of Workers
Weekly wages (in ₹)
No. of workers4

Answer:

We have

The Following Table Shows the Weekly Wages Drawn by Number of Workers in a Factory, Find the Median of the Following Data
Weekly wages (in ₹)No. of workers (f)

Now and this is in class.

Median class

Here,

We know that

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