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describe Expected value and variance and standard deviation.

A volunteer ambulance service handles 0 to 5 service calls on any given day.  The likelihood distribution for the number of service calls is as follows

Number of Service Calls

Probability

Number of service calls

Probability

0

0.1

3

0.2

1

0.15

4

0.15

2

0.3

5

0.1

a) describe what is the expected number of service calls?

b) describe what is the variance in the number of service calls?  What is the standard deviation?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M923355

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