Question

9.
en find the mean deviation.
1
fr
Marks of 12 students in a unit test are given as 4, 21, 13, 17,5,9, 10, 20, 19, 12, 20, 14,
Assume a mean and calculate the arithmetic mean of the data. Assume another number as
mean and calculate the arithmetic mean again. Do you get the same result? Comment
i1
10.
Arithmetic​

Answer 1

Answer:

arithmetic mean= sum of the observations divided by number of observations

avg= 4+21+13+17+5+9+10+20+19+12+14/12

avg= 164/12

mean=13.66

Step-by-step explanation:

i hope it is understandable to u