Respuesta :
Answer:
Step-by-step explanation:
1. Find the mean
94 + 69+74+96 = 333
Divide 333 by 4 = 83.25
Subtract 83.35 from 88
Answer : 4.75
Now follow the next steps
94+69+74+96=333
333/4= 83.25
Average is 83.25
88+88=176
176-83.25=92.75
Which means he need to get at least 93 marks for an average of 88.
333/4= 83.25
Average is 83.25
88+88=176
176-83.25=92.75
Which means he need to get at least 93 marks for an average of 88.