Question

mean of a+1,a+3,a+4,a+8​

Answer 1

Answer:mean = a + 4

Step-by-step explanation:

mean = sum of all observation / no . of observation

mean = a +1 + a + 3 + a + 4 + a + 8/4

mean = 4a + 16 / 4

mean = a + 4