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13. If a Poisson distribution is fitted to the following data:
0 1
2
4 5
3
76 74
29 17 3 1
Then the sum of the expected frequencies for x = 0, 1 and 2 is
(a) 150.
(b) 184.
(c) 165.
(d) 148.​

Answer 1

Answer:

The total number of accidents has been 0 × 395 + 1 × 235 + 2 × 73 + 3 × 17 = 432 ... In this example, λ = 0.6 and so the probabilities and expected frequencies in ... Number of calls per day 0 1 2 3 4 5 > 5.