Practice Questions
Both questions are based on the following information.The probability that it will snow during the next three days is given in the following table.

- What is the probability that it will not snow on Tuesday? A. 20% B. 40% C. 60% D. 80%
- What is the probability that it will snow on all three days? __________
Answers and Explanations
- The correct answer is D.
The probability of snow on Tuesday is 20%. Therefore, the probability that it will not snow on Tuesday is 100% – 20% = 80%.
- The correct answer is 5.6%.
Calculate the probability that it will snow on all three days by multiplying all three probabilities together. When plugging these percentages into your calculator, you can press the % button on the calculator after typing in each number.
(70%)(20%)(40%)=0.056
To convert this decimal answer into a percentage, simply multiply it by 100 to get