Question

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

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?

Answer 1

1. 5/20 or simplified 1/4
2. 8/20 or simplified 2/5
3.7/20
4. 18/20 or simplified 9/10

OR

1. 25%
2. 20%
3. 35%
4. 90%

Answer 2

1. 5/20 or simplified 1/4 25%

2. 8/20 or simplified 2/5 20%

3. 7/20 35%

4. 18/20 or simplified 9/10 90%

Explanation: