A sample of this sample of 300 rackets has 5 wood and 3 graphite rackets which a

Question

A sample of this sample of 300 rackets has 5 wood and 3 graphite rackets which are defective. If one racket is randomly is wood or defective. 100 wood and 200 graphite tennis rackets are taken from the warehouse. It is known that A. 0.335 B. 0.31 C. 0.53 D. 0.36 E. 0.343 Use this information to answer questions 12-15. Four hundred accidents that occurred on a Saturday night were analyzed. Two items noted were the number of vehicles involved and whether alcohol was detected in one of the drivers. The numbers are shown to the right Number ofVehicles Isvelved 170 Yes Ne 20 30 50 12. Presl2 Vehicles Involved)-? A. 0.688 B. 0364 C 0.25 D. 0.588 13. P (No AN D 3 Vehicles Involved A. 0.1 B. 0.075 C. 0.6 D. 0.575 14. What is true about the events A -[2 vehicles involved] and B [Yes, alcohol was detected) ? A. B. C. D. A and B are mutually exclusive A and B are independent A and B are NOT independent Event B is compliment to eventA Probability of getting a claim with one vehicle involved equals to 0.1875. Suppose the insurance company has exactly 15 daims submitted each day What is the probability that on a single random day 7 or more claims have one vehicle involved. Hint: use Binomial 15. You can leave the question as open response and write the formula as it appears in the calculator or in Excel. All arguments must be entered in the formulas as numbers in correct places. A. B. C. 0.997 0.1875 (0.25 to seventh power) 0.013 E. 0.47

Explanation / Answer

There are 100 wood rackets and 8 defective rackets

Total number of (wood or defective ) rackets = 100 + 8 - 5 = 103

Total rackets = 300

Pr = 103/300 = 0.343

Option E

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