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Describe Normal probability distribution.

1) A property of continuous distributions is that-

a) As with discrete random variables, the probability distribution can be approximated by a smooth curve

b) Probabilities for continuous variables can be approximated using discrete random variables

c) Unlike discrete random variables, probabilities can be found using tables.

d) Unlike discrete random variables, the probability that a continuous random variable equals a specific value is zero [P(X = x) = 0.

2) The area under the normal curve among z = 0 and z = 1 is ________________ the area under the normal curve between z = 1 and z = 2.

1) Less than

2) Greater than

3) Equal to

4) A, B or C above dependent on the value of the mean

5) A, B or C above dependent on the value of the standard deviation

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M919368

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