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Find the expected frequency for each cell and compute x

1. Use the following contingency table:

A B Total

1 20 30 50

2 30 20 50

Total 50 50 100

(a) Find the expected frequency for each cell?

(b) Compute X stat square? Is it significant at alpha-0.05?

2. The following table contains the probability distribution for X=the number of traffic accidents reported each day.

X 0 1 2 3 4 5

P(X) 0.10 0.20 0.45 0.15 0.05 0.05

(a) The probability of 3 accidents is?

(b) The mean or expected value of the number of accidents is?

(d) The standard deviation of the number of accidents is?

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Solution Preview :

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Basic Statistics: Find the expected frequency for each cell and compute x

Reference No:- TGS0584369

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