The marks of 10 students of a class in an examination arranged in ascending order is as follow. 13,35,47,46,x,x+4,55,61,71,80. If the median marks is 48, find the value of x. Hence find the mode of the given data.
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Solution
Now, the given numbers are : 13,35,47,46,x,x+4,55,61,71,80
The number of marks are even and so the median is given by: x+x+42=48 .....(given)
Therefore, 2x+4=96
⇒2x=92
⇒x=46
Now, the mode of the given data is the number that is repeated the most number of times.