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NCERT Solutions for Class 10 Maths Statistics : Before 10th maths, we have studied about the classification of giving data into ungrouped as well as grouped frequency distributions and to represent the data pictorially in the form of various graphs such as bar graphs, histograms. So now in 10th class maths we will study mean, median and mode for ungrouped data.
Grouped data Class 10 maths syllabus also covers the concept of cumulative frequency distribution and curves.
Mean of Grouped Data – NCERT Solutions for Class 10 Maths Statistics
The Sum of the values of all the observations divided by the total number of observations is known as mean
x̄ is the sample mean,
X is the class (or category) midpoint,
F is the class frequency.
So, there are three methods which we will have to learn in 10th class maths. They are mentioned as below now in this article we will learn about them one by one and also will do NCERT solutions.
Direct Method – NCERT Solutions for Class 10 Maths Statistics
For discussing this method let us solve the first question of exercise 14.1
Q1: A survey was conducted by a group of students as a part of their environment awareness Programme, in which they collected the following data regarding the number of plants in 20 houses in a locality. Find the mean number of plants per house.
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We will discuss the median and mode in our next 10th Class Maths Article. Keep watching the space.
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