A jar contains 5 green erasers, 2 striped erasers, 4 pink erasers, and 3 white erasers. You select an eraser at random. What is P(pink)?
a)2/7
b)2/5
c)5/7
d)4/7
can anyone help me plzz??
4 pink out of 14 total, so
P(pink) = 4/14 = 2/7
2/7
Correct way P{ not pink}
bot
The probability of not selecting a pink eraser can be found by adding the probabilities of selecting erasers that are not pink. There are 5 green erasers, 2 striped erasers, and 3 white erasers, so the probability of not selecting a pink eraser is:
P(not pink) = P(green) + P(striped) + P(white)
P(not pink) = 5/14 + 2/14 + 3/14
P(not pink) = 10/14
P(not pink) = 5/7
Therefore, the probability of selecting a pink eraser is:
P(pink) = 1 - P(not pink)
P(pink) = 1 - 5/7
P(pink) = 2/7
To find the probability of selecting a pink eraser, we need to divide the number of pink erasers by the total number of erasers in the jar.
Step 1: Find the total number of erasers in the jar.
The jar contains:
- 5 green erasers
- 2 striped erasers
- 4 pink erasers
- 3 white erasers
Adding these numbers together, we get: 5 + 2 + 4 + 3 = 14 erasers
Step 2: Find the number of pink erasers.
In the jar, there are 4 pink erasers.
Step 3: Calculate the probability.
To find the probability, we divide the number of favorable outcomes (pink erasers) by the total number of outcomes (total erasers).
P(pink) = Number of pink erasers / Total number of erasers
P(pink) = 4 / 14 = 2/7
Therefore, the correct answer is a) 2/7.