One of these is not a formula to find mean: (1)
A. \(\frac{\sum x}{n}\)
B. \(\frac{\Sigma x+a h}{n}\)
C. \(\frac{\Sigma f x}{N}\)
D. \(\frac{\Sigma f d}{N}\)
Answer:B
One of these is not a formula to find mean: (1)
A. \(\frac{\sum x}{n}\) B. \(\frac{\Sigma x+a h}{n}\) C. \(\frac{\Sigma f x}{N}\) D. \(\frac{\Sigma f d}{N}\)