Question: Question 1: Flawed parts: On a certain day, a foundry manufactured 596 cast aluminum parts. Some of these had major flaws, some had minor flaws,

Question 1:

Flawed parts: On a certain day, a foundry manufactured

596

cast aluminum parts. Some of these had major flaws, some had minor flaws, and some had both major and minor flaws. The following table represents the results.

	Minor Flaw	No Minor Flaw
Major Flaw	17	33
No Major Flaw	71	475

(a) Find the probability that a randomly chosen part has a major flaw. (b) Find the probability that a randomly chosen part has a minor flaw. (c) Find the probability that a randomly chosen part has a flaw (major or minor). (d) Find the probability that a randomly chosen part has no major flaw.

Question 2:

Bought a new car lately? The following table presents the number of vehicles sold in a certain country by several manufacturers in February 2012 and February 2013/

Manufacturer	2012	2013
General Motors	210,560	226,230
Ford	178,372	195,387
Chrysler LLC	133,949	141,138
Toyota	156,975	169,127
Honda	110,380	105,719
Nissan	104,599	97,560

Construct a relative frequency distribution for the 2012 sales. Round the answers to at least three decimal places.

Question 3:

Don't drink and drive: A highway safety council reported that there were 3949 fatalities among drivers in auto accidents in a particular year. Following is a frequency distribution of their ages. Approximate the mean age. Round your answer to one decimal place.

Age	Number of Fatalities
11 - 20	343
21 - 30	1549
31 - 40	849
41 - 50	685
51 - 60	403
61 - 70	120

The mean is approximately blank.

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