Question

. a, b, c are mid values of a data and corresponding frequencies are a, b, c respectively. Find AM.​

Answer 1

Answer:

$am = \frac{ {a}^{2} + {b}^{2} + {c}^{2} }{a + b + c} .$

Step-by-step explanation:

$am = \frac{a.a + b.b + c.c}{a + b + c} \\ \\ = \frac{ {a}^{2} + {b}^{2} + {c}^{2} }{a + b + c} .$