10∘+x=180∘ x=180∘−10∘ x=170∘
Find the mode of the following data: 120,110,120,130,110,140,130,120,120,140
Find the Arithmetic mean for each of the following frequency distribution by
Direct method
Class interval
Frequency
110-120
120-130
130-140
140-150
150-160
160-170
170-180
180-190
190-200
200-210
210-220
2
5
11
21
26
34
36
28
16
7
4