of the clients who had their hair cut at tanners salon last month, 4 clients had black hair and 12 clients…

of the clients who had their hair cut at tanners salon last month, 4 clients had black hair and 12 clients had hair in other colors. considering this data, how many of the next 12 clients to get haircuts should you expect to have black hair? clients

of the clients who had their hair cut at tanners salon last month, 4 clients had black hair and 12 clients had hair in other colors. considering this data, how many of the next 12 clients to get haircuts should you expect to have black hair? clients

Answer

Answer:

3

Explanation:

Step1: Calculate total clients last month

$4 + 12=16$

Step2: Calculate probability of black - haired clients

$\frac{4}{16}=\frac{1}{4}$

Step3: Calculate expected number of black - haired clients in next 12

$12\times\frac{1}{4}=3$