Question 10 24/304 or 0.079 186/897 or 0.207 24/897 or 0.027 514/897 or 0.573 Qu

Question

Question 10

24/304 or 0.079

186/897 or 0.207

24/897 or 0.027

514/897 or 0.573

Question 11

A firm offers routine physical examinations as part of a health service program for its employees. The exams showed that 6% of the employees needed corrective shoes, 15% needed major dental work and 3% needed both corrective shoes and major dental work. What is the probability that an employee selected at random will need either corrective shoes or major dental work?

1.14

0.40

0.24

0.18

Question 12

There are 9 rolls of film in a box and 3 are defective. Two rolls are selected without replacement. What is the probability of selecting a defective roll followed by another defective roll?

0.67

0.33

2.67

0.08

Question 13

An electronics firm sells four models of stereo receivers, three CD decks, and six speaker brands. When the three types of components are sold together, they form a "system." How many different systems can the electronics firm offer?

169

72

13

36

Question 14

You have the assignment of designing color codes for different parts. Two colors are used on each part, but a combination of two colors used for one part cannot be rearranged and used to identify a different part. This means that if yellow and violet were used to identify a camshaft, violet and yellow (or any other combination of these two colors) could not be used to identify a pinion gear. If there are 55 combinations, how many colors were available?

11

15

9

13

The National Center for Health Statistics reported that of every 897 deaths in recent years, 24 resulted from an automobile accident, 186 from cancer and 304 from heart disease. What is the probability that a particular death is due to an automobile accident?

Explanation / Answer

As per the Chegg policy, we are advised to do one question at a time still i am doing the first two questions.

10. P(Death due to automobile accident) = 24/897 = 0.027

Option C is correct.

11. P(Either) = 0.06 + 0.15 - 0.03 = 0.18

Option D is correct.

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