Question

U have 20 red 30 black and 40 blue socks you have to select stocks which have at least one good paired ..Find min number of ways..........

Answer 1

Answer:

Number of red socks = 20

Number of black socks = 30

Number of blue socks = 40

Mean = sum of observations / Number of observations

Mean = 20 + 30 + 40 / 3

Mean = 90 / 3

Mean = 30 .