EnergeticTech

Histogram A histogram is what we call an area diagram. It indicates the frequency of a class interval. The class interval or the range of values is known as bins or classes with reference to histograms. A bar indicates the number of data points within a specific class. That means the higher the frequency of a particular class, higher the bar. Let us see an example of a Histogram. From the below-given table of the various heights of trees in a region, we will draw a histogram to illustrate how it is done. Let us look at the frequency table now. Height of Trees (ft) No. of trees 60-65 3 65-70 3 70-75 8 75-80 10 80-85 5 85-90 2 Now here the heights of the tree are continuous data. These class intervals are the bins. And the number of trees are obviously the frequency. And now let us draw a histogram (given below) that represents the above data. Histograms vs Bar Charts In bar graphs, each bar represents one value or category. On the other hand in a histogram...

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Quadrilateral || Shashaank Blogspot

August 03, 2021

The angles of a quadrilateral are in the ratio 2 : 3 : 5 : 8 . Find the smallest angle of the quadrilateral? Given ratio of angles of quadrilateral A B C D is 2 : 3 : 5 : 8 Let the angles of quadrilateral A B C D be 2 x , 3 x , 5 x , 8 x , respectively. We know, by angle sum property, the sum of angles of a quadrilateral is 3 6 0 o . ⇒ 2 x + 3 x + 5 x + 8 x = 3 6 0 o ⇒ 1 8 x = 3 6 0 o ∴ x = 2 0 o . ∴ ∠ A = 2 x = 2 × 2 0 o = 4 0 o , ∠ B = 3 x = 3 × 2 0 o = 6 0 o , ∠ C = 5 x = 5 × 2 0 o = 1 0 0 o and ∠ D = 8 x = 8 × 2 0 o = 1 6 0 o . ∴ The smallest angle = 4 0