A grouped frequency distribution table with c | vedclass

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(D) Step $1$: Identify the minimum and maximum values in the data.Minimum value $= 14$,Maximum value $= 112$.Step $2$: Determine the class size.The gi

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$10$

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(D) Step $1$: Identify the minimum and maximum values in the data.Minimum value $= 14$,Maximum value $= 112$.Step $2$: Determine the class size.The given class is $63-72$. Since $72$ is included,the class size is $72 - 63 + 1 = 10$.Step $3$: Form the classes starting from a value less than or equal to the minimum $(14)$.Starting from $3-12$ would be possible,but to cover $14$,we start from $3-12$ or $13-22$. Using $13-22$ as the first class:$13-22, 23-32, 33-42, 43-52, 53-62, 63-72, 73-82, 83-92, 93-102, 103-112$.Step $4$: Count the number of classes.There are $10$ classes in total.Therefore,the correct option is $D$.

Class	$10-20$	$20-30$	$30-40$	$40-50$	$50-60$	$60-70$	$70-80$
Frequency	$1$	$4$	$5$	$10$	$5$	$4$	$1$

Marks $(x_{i})$	$15$	$22$	$28$	$31$	$35$	$40$	$44$	$46$
Number of students $(f_{i})$	$2$	$3$	$5$	$6$	$6$	$4$	$3$	$1$

Similar Questions

....... is a branch of Mathematics in which the extraction of meaningful information is studied.

For the following data,draw a frequency polygon:

Class $10-20$ $20-30$ $30-40$ $40-50$ $50-60$ $60-70$ $70-80$

Frequency $1$ $4$ $5$ $10$ $5$ $4$ $1$

If the sum of $25$ observations is $900$, find the mean of those observations.

The class-mark of the class $130-150$ is:

The information regarding the marks scored by $30$ students in a $50$ marks test is given below:

Marks $(x_{i})$ $15$ $22$ $28$ $31$ $35$ $40$ $44$ $46$

Number of students $(f_{i})$ $2$ $3$ $5$ $6$ $6$ $4$ $3$ $1$

Find the mean of the data.

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