Silvia has a collection of stamps from around the world as listed below.

Question

4 stamps from Mexico
3 stamps from Peru
6 stamps from Germany
2 stamps from Tonga
5 stamps from New Zealand
She places them all in a box and randomly draws one.

What is the probability that Silvia draws a stamp from New Zealand?

What is the probability that Silvia draws a stamp from either Germany or Tonga?

What is the probability that Silvia draws a stamp from either Peru or Mexico?

What is the probability that Silvia does not draw a stamp from Tonga?
and explain

Answer 1

Answers:

1. The probability that Silvia draws a stamp from New Zealand is 5/20 or 1/4. This is because there are 5 stamps from New Zealand out of a total of 20 stamps in the collection.

2. The probability that Silvia draws a stamp from either Germany or Tonga is 8/20 or 2/5. This is because there are 6 stamps from Germany and 2 stamps from Tonga, for a total of 8 stamps out of 20.

3. The probability that Silvia draws a stamp from either Peru or Mexico is 7/20 or 0.35. This is because there are 4 stamps from Mexico and 3 stamps from Peru, for a total of 7 stamps out of 20.

4. The probability that Silvia does not draw a stamp from Tonga is 18/20 or 9/10. This is because there are 20 stamps in total, and 2 of them are from Tonga, so there are 18 stamps that are not from Tonga. Therefore, the probability of not drawing a stamp from Tonga is 18/20 or 9/10.