More than ogive

More than Ogive Curves

1. More Than Ogive Graphs For 10 th B JAYCEES MATHEMATICS DEPARTMENT PRESENT

2. O G I V E S

3. How to plot an ogive curve?

4. Following steps are necessary to plot a more than type ogive curve ; Starts from the lower limit of the class intervals and total frequency is subtracted from the frequency to get the cumulative frequency distribution . In the graph , consider the lower limit x - axis direction and cumulative frequencies along y - axis direction .

5. Plot the points x, y, where ‘x’ is the upper limit of the class and y is the corresponding cumulative frequency. Joins the points by a smooth curve.

6. MA R K S 0-5 5-10 10 -15 15- 20 20- 25 25- 30 30- 35 35- 40 40- 45 45- 50 FRE QUE NCY 3 5 7 8 10 11 14 19 15 3 For the data give below, construct more than cumulative frequency and plot its ogive

7. MARKS F R EQUE NCY C U MU L A TIVE FREQUENCY 0-5 3 92+3=95 5-10 5 87+5=92 10-15 7 80+7=87 15-20 8 72+8=80 20-25 10 62+10=72 25-30 11 51+11=62 30-35 14 37+14=51 35-40 19 18+19=37 40-45 15 3+15=18 45-50 3 3

8. Points for More Than Ogive (0,95) (5,92) (10,87) (15,80) (20,72) (25,62) (30,51) (35,37) (40,18 ) (45,3 )

9. Points for less than ogive Points for more than ogive (10,3) (0,100) (20,9) (10,97) (30,19) (20,91) (40,32) (30,81) (50,52) (40,68) (60,70) (50,48) (70,85) (60,30) (80,94) (70,15) (90,100) (80,6)