Statistic Probability Questions and Answers

Continuous probability distributions are expressed with a formula a Probability Density Function describing the shape of the distribution. For example the following chart shows the probability of rolling a die.

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Usually in stats you dont know anything about a population so instead of a Z score you use a T Test with a T Statistic.

. Experimental or empirical probability is the probability of an event based on the results of an actual experiment conducted several times. The population standard deviation. In theoretical probability we assume that the probability of occurrence of any event is equally likely and based on that we predict the probability of an event.

When we toss an unbiased coin the chances of. Discrete probability distributions are usually described with a frequency distribution table or other type of graph or chart. The Z-score allows you to decide if your sample is different from the population meanIn order to use z you must know four things.

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