Answer number 2 I. Multiple-Cholces (1) In Safevlle, the police department has i

Question

Answer number 2 I. Multiple-Cholces (1) In Safevlle, the police department has identified four internectione as potentially dangerous. The Relative trequency (B) Z, W, X, Y (C) Y, z, x. W (D) Z, X, W, Y ntersection 802 plceo Using the data in the table, liat the intersuctions in order from most to least dangerous. (A) W, z, Y, X (2) If the mean value of successen in a binomial experiment of 100 trials is 55, the standard deviation of the number of successes is approximately (A) 2.23 (B) 2.49 (C) 4.97 (D) The standard deviation cannot be determined

Explanation / Answer

1.

ans. option d because these are the accidents rates per traffic flow .W=6.4,X=4.9,Y=7.1,Z=4.2

so asked from most to least it is option d

2. using standard deviation formula

the answer is option a 2.234

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