Question

6· The following diagram is a bar plot of the numbers of the students attending 12 courses in one year. Give the datasheet of this plot and calculate the cumulative values of the course numbers (4 points) 20 15- 10 Ii 123 456789 10 11 12 Coure number 7. The following diagram is a pie plot of the mineral contents for an igncous rock Give the datasheet of this plot (I pint) Hornblende Biotite Quartz (30%) K-feldspar

Answer 1

6)X axis represents Course values and Bar represents Values.

Course Students Cumulative 1 20 20 10 20+10-30 7 30+7-37 3 37+3-40 4 40+4-44 4 44+4-48 2 48+2-50 2 50+2-52 3 52+3-55 2 55+2-57 1 57+1-58 1 58+1-59 4 10 12

Cumulative frequency is total of each frequency added to it's predecessor.

7) The sum of contents percentages value in pie chart is 100%.