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The mass of students in the 

10

 schools in a environs are dedicated under. 

(Note that these are already ordered from smallest to principal.)

178, 231, 240, 277, 303, 309, 366, 384, 432, 440

Suppose that the number 

178

 from this inventory changes to 

268

. Answer the aftercited.

(a)   What happens to the average?It decreases by

.

It increases by

.

It stays the identical.(b)   What happens to the median?It decreases by

.

It increases by

.

It stays the identical.

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