Statistics Solutions

(See Solution) A police department used a radar gun to measure the speed of a sample of cars on a residential street. The results are shown in the table:

Question: A police department used a radar gun to measure the speed of a sample of cars on a residential street. The results are shown in the table:

Speed
(mph) 		21 22 23 24 25 26 27 28 29 30 31 32 33 34 3 5
Number
of cars 		2 4 5 10 15 21 43 55 38 29 15 9 3 0 2
  1. Create a frequency histogram of the data. Let the interval width be 2 mites/hour
  2. Give the five number summary of the data.
  3. Using the information in parts (A) and (13), describe the shape of the data.
  4. Traffic engineers set the speed limit at the 85'b percentile of the traffic load. Based on the data, compute the recommended speed limit (to the nearest mile per hour) for this road.

Price: $2.99
Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document


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