A) 7, 7, 8, 8
B) 7, 8, 8, 8
C) 7, 8, 8, 9
D) 8, 8, 8, 8
Correct Answer: C
Solution :
Since mode of four numbers is 8 therefore 8 occurs at least two times and 7 is one of them. So, three observations are 7, 8, 8 Now, Let fourth observations be\[x.\] \[\therefore \]\[7+8+8+x=4\times 8\] \[\Rightarrow \]\[x=32-23=9\]You need to login to perform this action.
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