Advertisements
Advertisements
प्रश्न
The mean of data, represented by given diagram, is:
पर्याय
53
47
42
51
MCQ
Advertisements
उत्तर
47
Explanation:
Table from the given graph is:
| C.I. | Class mark (x) | Frequency (f) | fx |
| 40-50 | 45 | 40 | 1800 |
| 50-60 | 55 | 10 | 550 |
| Total | Σf = 50 | Σfx = 2350 |
By formula,
\[\text{Mean} = \frac{\Sigma fx}{\Sigma f} = \frac{2350}{50} = 47\]
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
