Question

The mean of following numbers is 68.Find the value of 'x' .
45,52,60,x,69,70,26,81 and 94
Hence,estimate the median.​

Answer 1

Step-by-step explanation:

Arranging the numbers in ascending order:

26,45,52,60,69,70,81,94,x

Mean = Sum of all observations / total number of observations

68 = 26+45+52+60+69+70+81+94+x / 9

68 = 497 + x / 9

68 × 9 = 497 + x

612 = 497 + x

x = 612 - 497

x = 115

Hence the number is 115

Now arranging all the numbers in ascending order:

26,45,52,60,69,70,81,94,115

We find that 69 is the median because on both its sides there are four numbers.

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Answer 2

Answer:

mean is 115

median is 69 answer