![]() ![]() ![]() Bar graph and using bars of uniform widths and Double bar graphs to compare two collections of data at a glance is also given in 7th Maths Chapter 3 Data Handling. It refers to the value which lies in the middle of the data with half of the observations above it and the other half below it. We will discuss the average that is a number that represents or shows the central tendency of a group of observations or data along with arithmetic mean, Mode, which is another form of central tendency or symbolic value and Medium. Before collecting data, we need to know that the data that is collected needs to be organised in a proper table so that it becomes easy to understand and interpret. In Chapter 3 of Class 7 Maths, we will know about the collection, recording and presentation of data. This concept is also used in Chapter 4 Simple Equations also. How to obtain a reciprocal of a fraction is obtained by inverting it upside down. ![]() There are methods for how two fractions are multiplied by multiplying their numerators and denominators separately and writing the product. We will also study the operations of multiplication and division on fractions as well as on decimals. The count should be the sum obtained earlier. Put the decimal point in the product by counting the digits from its rightmost place. Count the number of digits to the right of the decimal point in both the decimal numbers. While multiplying two decimal numbers, first multiply them as whole numbers. We also learnt how to multiply two decimal numbers. In Class 7 Maths Chapter 2, we will learn about fractions and decimals along with the operations of addition and subtraction on them. ![]()
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