ECO 254 (CBT 5)

The Cauchy distribution is often used instatistics as the canonical example of pathological distribution since both its mean and its variance are ___________
Defined.
Undefined.
Analysed.
All of the options.
The values of a parameter and that of the corresponding statistics are not always the same ___________
Sample
Uniform
Population
Data
The calculation of sampling distribution is a step forward to look at different ways of obtaining distribution of proportion process of _______ data.
Uniform
Pooled
Sample
None of the options
Regression analysis is widely used for ________ and _________
Prediction and calculation
Calculation and forecasting
Prediction and forecasting
Forecasting and analysis
_________ test is a statistical test that is used on pair nominal data.
Cochram Mantel
Mc Nemar's
Turkey's test
All of the options
The t statistics was introduced in _________ year.
1988
1901
1908
1998
When a random variable takes values from continuous probabilities that are non-zero, this can only refer to _________
Quarterly data
Monthly interval
Infinite intervals
All of the options
In Probability and Statistics, a probability distribution assigns a probability to each measurable subset of the possible outcome of a __________
Random experiment
Inference statistics
Probability experiment
None of the options
_________ is a random variable that we can assign a probability to each possible value.
Discrete random variables
Continuous random variables
Fixed random variables
All of the options
A type of photocopier has a paper jam on average once every 3000 copies. What is the probability that there will be more than two jams in a 3000 copy run?
2
3
7
None of the options
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