riley runs a stable that boards a range of horses. white 3 bay 2 palomino 9 black 1 considering this data…
riley runs a stable that boards a range of horses. white 3 bay 2 palomino 9 black 1 considering this data, how many of the next 20 horses that come to board should you expect to be white horses? white horses
Answer
Explanation:
Step1: Calculate total number of horses
$3 + 2+9 + 1=15$
Step2: Find probability of a white - horse
The probability $P$ of a horse being white is $\frac{3}{15}=\frac{1}{5}$
Step3: Calculate expected number of white horses
For 20 horses, the expected number of white horses is $20\times\frac{1}{5}=4$
Answer:
4