Question

following are the marks obtained by 8 students in statistics calculate the arithmetic mean
X-15,18,16,45,32,40,30,28,​

Answer 1

Answer:

arithmetic mean = 28

Step-by-step explanation:

arithmetic mean = $\frac{ sum-of-all-observations}{total-no.-of-observations}$

                           = $\frac{15+18+16+45+32+40+30+28}{8}$

                           = $\frac{224}{8}$

                           = 28