Question

Calculate
the mean of following data
1,2,3,4,5,6,7,8,9
a) 2
b)3
c) 4
d) 5​

Answer 1

Answer:

d) 5 is the correct answer

Answer 2

$mean = \frac{sum \: of \: terms}{number \: of \: terms} \\ \\ 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 = 45 \\ \\ \frac{45}{9} = 5$

(d) 5