Question

2, k+1, 2, k, 7 is multiplied by 3, the new mean is 12 WHAT IS THE VALUE OF K

Answer 1

Mode is the value which occurs most often in the data set of values.

Given data values are 2,4,6,7,5,6,10,6,7,2k+1,9,7,13

In the above data set, values 6,7 have occured more times i.e., 3 times

But given that mode is 7. So, should occur more times than 6. Hence the variable 2k+1 must be 7

⟹2k+1=7

⟹2k=6⟹k=

2/6

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⟹k=3