hi im really confused how to figure this problem out. I understand I used the wrong formula to find the mean and standard deviation but I'm confused on how to get the actual answer.

A College students' expenses for academic supplies have a mean of $1, 100 and a standard deviation of - 7 $290. Their expenses for entertainment have a mean of $950 and a standard deviation of $250. Assuming the expenses for academic supplies and for the entertainment are independent, what are the mean and standard deviation of the total yearly expenditures by college students for these two items? A = academic E= entertainment T = total (A) Mean = $1,025 and standard deviation = $270 MIT = MA + 1, = 1,100 + 950 = 1051 (B) Mean = $1,025 and standard deviation = $383 (C) Mean = $2,050 and standard deviation = $270 AT = UA + 02 - 7146600 = 382.8 (D) Mean = $2,050 and standard deviation = $383 = 383 (E) Mean = $2,050 and standard deviation = $540