lacey runs a stable that boards a range of horses. brown 8 black 9 gray 3 considering this data, how many of…

lacey runs a stable that boards a range of horses. brown 8 black 9 gray 3 considering this data, how many of the next 15 horses that come to board should you expect to be brown horses? brown horses

lacey runs a stable that boards a range of horses. brown 8 black 9 gray 3 considering this data, how many of the next 15 horses that come to board should you expect to be brown horses? brown horses

Answer

Explanation:

Step1: Calculate total number of horses

$8 + 9+3=20$

Step2: Calculate probability of a horse being brown

The probability $P=\frac{8}{20}=\frac{2}{5}$

Step3: Calculate expected number of brown horses out of 15

Expected number $=\frac{2}{5}\times15 = 6$

Answer:

6