Question

15,11,13,10,18,6,9,10,15,11,12illutrate D4=

Answer 1

B

15

The mode is the value which occurs the most often in a given set of data.

In the data set provided here, the mode is 15, hence 15 should occur the most number of times.

10,11,12,10,15,14,15,13,12,x,9,7

Excluding x and arranging these numbers in ascending order,

7,9,10,10,11,12,12,13,14,15,15

Here 10, 12 and 15 are occurring twice.

Since 15 is the mode, it should occur more than twice.

Therefore, the value of x should be 15 if the value of mode is 15.