For a given frequency distribution,the total frequency is $25$ and $\Sigma f_{i} x_{i} = 120$. Then,the mean is $\ldots$
- A$4.8$
- B$0.48$
- C$2.4$
- D$0.24$
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Similar Questions
For some given data,if $Z = 95$ and $\bar{x} = 98,$ then $M = \ldots \ldots \ldots$
Easy
View Solution$Z - M = \ldots \ldots \ldots \times (M - \bar{x})$
Easy
View SolutionCalculate the mean of the scores of $20$ students in a mathematics test:
Marks $10-20$ $20-30$ $30-40$ $40-50$ $50-60$ Number of students $2$ $4$ $7$ $6$ $1$
| Marks | $10-20$ | $20-30$ | $30-40$ | $40-50$ | $50-60$ |
| Number of students | $2$ | $4$ | $7$ | $6$ | $1$ |
Medium
View SolutionIf $Z - M = 4$,then $M - \bar{x} = \dots$
Medium
View SolutionFind the median of the following frequency distribution:
Class $0-5$ $5-10$ $10-15$ $15-20$ $20-25$ $25-30$ $30-35$ Frequency $5$ $15$ $15$ $8$ $4$ $2$ $1$
| Class | $0-5$ | $5-10$ | $10-15$ | $15-20$ | $20-25$ | $25-30$ | $30-35$ |
|---|---|---|---|---|---|---|---|
| Frequency | $5$ | $15$ | $15$ | $8$ | $4$ | $2$ | $1$ |
Medium
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