In the formula $Z = l + \left( \frac{f_{1} - f_{0}}{2f_{1} - f_{0} - f_{2}} \right) \times c$ for the mode,$f_{1} = \ldots \ldots \ldots$
- Afrequency of the class preceding the modal class
- Bclass length
- Cfrequency of the modal class
- Dfrequency of the class succeeding the modal class
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In the formula $\bar{x} = A + \frac{\Sigma f_{i} u_{i}}{\Sigma f_{i}} \times c$,$c$ represents .......
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View SolutionThe weight of coffee in $70$ packets is shown in the following table:
Weight (in $g$) Number of packets $200-201$ $12$ $201-202$ $26$ $202-203$ $20$ $203-204$ $9$ $204-205$ $2$ $205-206$ $1$
Determine the modal weight (in $g$).
| Weight (in $g$) | Number of packets |
| $200-201$ | $12$ |
| $201-202$ | $26$ |
| $202-203$ | $20$ |
| $203-204$ | $9$ |
| $204-205$ | $2$ |
| $205-206$ | $1$ |
Determine the modal weight (in $g$).
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View SolutionFor a given frequency distribution,$\bar{x} = 19.7$,$A = 20$,and $n = 50$. Then,$\Sigma f_{i} d_{i} = \ldots$
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View SolutionThe mean of $10$ observations is $15.7$. If a new observation $19$ is included,the new mean is ..........
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