വ്യതിയാന ഗുണാങ്കം കാണാനുള്ള സൂത്രവാക്യം
A𝜎 / x̅
Bx̅ /𝜎
C(𝜎 / x̅ )100
D(x̅ / 𝜎)100
A𝜎 / x̅
Bx̅ /𝜎
C(𝜎 / x̅ )100
D(x̅ / 𝜎)100
Related Questions:
The table classifies 40 persons who took a test according to the marks they scored: Calculate the mean marks scored.
Marks | Persons |
0 - 10 | 4 |
10 - 20 | 6 |
20 - 30 | 16 |
30 - 40 | 8 |
40 - 50 | 6 |
which of the following is the merits of arithmetic mean