The mean of 5 numbers is 4. What happens to the mean if the number 10 is added to the data set? A. The mean increases by 6. B. The mean increases by 5. C. The mean increases by 3. D. The mean increases by 1.r 10 is added to the data set? A. The median does not change. B. The median increases by 2. C. The median decreases by 0.25. D. The median increases by 1.

Step-by-step explanation:

Answer Should be D I belive

D.    The mean is the middle... so four is the middle of the whole data set. 10 is the new greatest number so it would increase by 1. D is the answer.

I'm not actually sure so I'm sorry if it's not right

Hope it helps!! ^^

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)