Question: 24. The average particulate concentration, in micrograms per cubic meter, was measured in a petrochemical complex at 36 randomly chosen times, with the following concentrations

24. The average particulate concentration, in micrograms per cubic meter, was measured in a petrochemical complex at 36 randomly chosen times, with the following concentrations resulting:

5, 18, 15, 7, 23, 220, 130, 85, 103, 25, 80, 7, 24, 6, 13, 65, 37, 25, 24, 65, 82, 95, 77, 15, 70, 110, 44, 28, 33, 81, 29, 14, 45, 92, 17, 53

(a) Represent the data in a histogram.

(b) Is the histogram approximately normal?

Dogs Rank Breed 1 Retrievers (Labrador) 2000 172,841 2 Retrievers (Golden) 66,300

Dogs Rank Breed 1 Retrievers (Labrador) 2000 172,841 2 Retrievers (Golden) 66,300 3 German Shepherd Dogs 57,660 4 Dachshunds 54,773 5 Beagles 52,026 6 Poodles 45,868 7 Yorkshire Terriers 43,574 8 Chihuahuas 43,096 9 Boxers 38,803 10 Shih Tzu 37,599 11 Rottweilers 37,355 12 Pomeranians 33.568 13 Miniature Schnauzers 30,472 14 Spaniels (Cocker) 29,393 15 Pugs 24,373 16 Shetland Sheepdogs 23,866 17 Miniature Pinschers 22,020 18 Boston Terriers 19,922 19 Siberian Huskies 17,551 20 Maltese 17,446 Source: American Kennel Club, New York, NY: Dogs registered during calendar year shown.

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