Answer:
See below.
Step-by-step explanation:
Given numbers :-
⇒ 176, 231, 247, 256, 272, 299, 325, 343, 366, 375
⇒ Median = 272 + 299 / 2 = 285.5
⇒ Mean = 2890/10 = 289
(a) median if 375 becomes 265
⇒ 176, 231, 247, 256, 265, 272, 299, 325, 343, 366
⇒ New median = 265 + 272 / 2 = 268.5
⇒ Decreases by 17
(b) mean if 375 becomes 265
⇒ New mean = 2890 - 110 / 10 = 2780/10 = 278
⇒ Decreases by 11
