Question

The probability of a certain hockey player making a goal after hitting a slap shot is 1/5. How many successful slap shot would you expect her to make after 120 attempts?
-5
-20
-24
-60

I need help with Getting the answer! Help please!

Answer 1

Successful slap slots = 1/5 x 120 = 24

Answer: 24

Answer 2

We know that the probability of a certain hockey player making a goal after hitting a slap shot is $\frac{1}{5}$.

We need to figure out the number of successful slap shots if she makes 120 attempts?

Since the player is able to make a goal once out of 5 attempts. Therefore, in order to find the number of goals that we can expect the player to make successfully if she attempts 120 slap shots we will multiply the probability with 120.

Number of successful goals = (Probability of making one goal)x(Number of attempts)

Number of successful goals = $\frac{1}{5}\times 120 = 24$.

Therefore, player will be able to make 24 goals out of 120 attempts.