Use this chart to answer the following three questions.

In 1912, the RMS Titanic, a British passenger ship, sank in the North Atlantic Ocean after colliding with an iceberg. Historians do not know the exact passenger list, so the death toll is estimated. Here is the data from 1,995 passengers on board, by cabin class.

	Fist class	Second class	Third class	Crew	Row Total
Died	134	163	627	421
Survived	241	83	209	117
Column Total

1.Using the chart above what is the risk of death for a crew member?

• 0.01
• 0.31
• 0.78
• 0.22

2. Using the chart above what is the risk of death for first class passengers?

• 0.37
• 0.36
• 0.01
• 0.64

3. Using the chart above, which of the following could be used to communicate the risk of death for a Crew member compared to a First Class passenger?

• 2.17
• 0.42
• 1.35
• 0.46

4. A consumer organization inspecting new cars found that many had appearance defects (dents, scratches, paint chips, etc.). No car had more than three defects.

The probability distribution for the number of appearance defects

X: Number of defects	0	1	2	3
P(x)	0.61	0.21	0.11	0.7

Find the expected number of defects in a new car. Round to 2 decimal places.

5. Identify the probability of an event that is certain to happen.

6. Based on the table what is the probability that a coin toss ends up with a head? Round to 1 decimal place. P(H)=

Outcome	Head	Tail
Number of tosses with each outcome	60	140

7. Which of the following is an example of a discrete variable?

• Length of foot
• Time of day
• Zipcode
• Shoe Size

8. What is the probability of the shaded area? Round to 2 decimal places.

\ffix) 0.8+ 0.6 0.4- 0.2- 1.5 2.5 3.5 X