A student showed the following histogram for 50 toss of die: We could infer that

Question

A student showed the following histogram for 50 toss of die: We could infer that: a) The die is fair. b) The die seems to be not fair. c) A histogram could not represent a toss of a die d) The sum of the relative frequency is not equal to the number of times the die was tossed. A 99% Confidence Interval means: a) The values should be between 0 and 99. b) The value (measured, calculated) is 99% correct c) With 0.99, the interval contains population's average. d) With 0.99, the mean value for the population will be not contained within the given interval. In a bank (with only one teller), the interval between successive arrivals is 1 minute and service time is also 1 minute. What is the average length of the queue, considering: (i) Deterministic (and Constant) times. (ii) The given times are the average of a negative exponential probability distribution. a) 0,0 b) 1.1 c) Infinite, infinite d) 0, undetermined (system becomes unstable) Which probability distribution better represents the heights of people in world? a) Uniform b) Normal c) Exponential (negative) d) The heights cannot be represented by a probability distribution.

Explanation / Answer

1) Option a the dice is fair

2) A 99% confidence interval means with 0.99 the interval contains population average. Option c is correct.

3) average length of the queue is zero.

4) Height of the world will follow normal distribution. Option But.

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