Ex 4.1, 2 - Chapter 4 Class 8 Data Handling

Transcript

Ex 4.1, 2 A group of 360 people were asked to vote for their favorite season from the three seasons rainy, winter and summer. (i) Which season got the most votes? Winter season got the most votes. Ex 4.1, 2 (ii) Find the central angle of each sector. Total Votes = 90 + 120 + 150 = 360 Fraction = (𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑉𝑜𝑡𝑒𝑠)/(𝑇𝑜𝑡𝑎𝑙 𝑉𝑜𝑡𝑒𝑠) ∴ Central angle of summer = 90° Central angle of rainy = 120° Central angle of winter = 150° We follow the steps 1. Draw a circle of any radius. Mark Radius as OA. 2. Put protractor on AO and Draw largest angle 150° 3. Now, put protractor on AO and Mark angle 90° 4. The remaining portion is 120° 5. Now, Label the pie chart