The arithmetic mean of 5, 8, 10, 15, 24 and 28 is_______

  • A 145
  • B 15
  • C 90
  • D 6

The correct answer is B. 15

Arithmetic Mean = ∑X N ,
where N = Number of observation and X is observations Therefore; 5+8+10+15+24+286\frac{5 + 8 + 10 + 15 + 24 + 28}{6} = 906\frac{90}{6} = 15 Previous question Next question