Question

Question 8 (1 point Suppose that a police officer measured the speed of cars on a highway for an hour. The average speed of the cars was 70.5 and the standard deviation was 4.86. However, since the radar gun was biased, 4 is added to every observation in the dataset. What will the new mean be? 1) 74.5 2) 17.62 3) 4) 282 5) 70.5 Total enrollment in the Kalamazoo Public Schools have a mean and standard deviation of 11/485.2 and 19.2, respectively. The district expects growth in the next five years, so every Question 9 (1 point) observation in the dataset is muitialied ty 12 what wi the new mean be

Answer 1

New mean will be 4+ previous mean

= 4 + 70.5

= 74.5

option 1) is correct

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