To present a large amount of data so that a reader can make sense of it easily,the variable values are condensed into groups called ..........

  • A
    Frequency
  • B
    classes
  • C
    primary data
  • D
    secondary data

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Similar Questions

The mean of $10$ observations is $48$. If each observation is divided by $3$,what will be the new mean?

The class marks of a continuous distribution are: $1.04, 1.14, 1.24, 1.34, 1.44, 1.54$ and $1.64$. Is it correct to say that the last interval will be $1.55-1.73$? Justify your answer.

Ten observations $6, 14, 15, 17, x+1, 2x-13, 30, 32, 34, 43$ are written in an ascending order. The median of the data is $24$. Find the value of $x$.

Draw a histogram for the following frequency distribution with unequal class length:
Class $0-10$ $10-20$ $20-40$ $40-70$ $70-100$
Frequency $15$ $13$ $28$ $36$ $27$

Mean of $50$ observations was found to be $80.4$. But later on,it was discovered that $96$ was misread as $69$ at one place. Find the correct mean.

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