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amm1812
3 years ago
9

A model builder has 30 pieces of balsa wood in a box. Four pieces are 15 inches long, 10 pieces are 12 inches long, and the rest

are 8 inches long. What is the probability the builder will pull an 8-inch piece from the box without looking?
Mathematics
2 answers:
vovangra [49]3 years ago
7 0

Answer:

The probability is 53.33%.

Step-by-step explanation:

A model builder has 30 pieces of balsa wood in a box.

4 pieces are 15 inches long.

10 pieces are 12 inches long.

Says rest are 8 inches. So, rest are (30-14=16)

16 pieces are 8 inches long.

Now, we have to tell the probability the builder will pull an 8-inch piece from the box without looking.

The probability is given by=

\frac{number of possible outcomes}{total number of outcomes}

Hence, the probability is : \frac{16}{30} or \frac{8}{15}

If we want this in percentage this is 53.33%.

VladimirAG [237]3 years ago
5 0
There is about a 16.5% chance to pull an 8-inch piece, this is theoretical probability though. <span />
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