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Recent questions tagged statistics

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What is P-value in Statistical Testing?
What is P-value in Statistical testing?
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741 views
What is a sampling distribution of sample means?
What is a sampling distribution of sample means?
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In the first week of November 2003.... What is the expected number of homicides per week in the GTA?
This is from question one from lecture 4B's exercises: "In the first week of November 2003, five unrelated homicides were reported in the GTA. The GTA usually has about 7...
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What is summary statistics?
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What is the difference between univariate and multivariate analysis?
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What is the purpose of randomization in statistics?
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In statistics, whats the difference between contingency and frequency tables?
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Which scenarios among the following are a valid reason to use regularization?
A. To drop the least useful variables of a modelB. To reduce over-fittingC. To reduce the bias of a modelD. To decrease p-value
1 1 vote
1 1 answer
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854 views
How do you tell a permutation problem from a combination problem?
Given the questions:1. How many different groups of 4 students can be made from a class of 40?and2. How many different lists of 4 students can be made from a class of 40?...
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1 answers 1 answer
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853 views
What is the use of the Poisson Distribution?
Also, when would one use this distribution ?
1 1 vote
1 answers 1 answer
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How do we determine if two events are independent
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785 views
In the context of probability, what is the "event space"
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What is the "Three-Standard-Deviations Rule"
This rule is also known as the "68–95–99.7 rule". What does this rule stand for and how does it help me?
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720 views
How do histograms help us understand a data set?
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814 views
What is a discrete random variable?
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What is the difference between permutation and combination?
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What is the difference between Qualitative and Quantitative data?
4 4 votes
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If x is the number that comes up when you roll a 20 sided die. What is the expected value of x?
If x is the number that comes up when you roll a 20 sided die. What is the expected value of x?
1 1 vote
0 0 answers
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970 views
What is the probability of getting a King of Hearts?
What is the probability of picking a King of Hearts in a standard 52 card deck?
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Define measures of center (Median and Mode) ?
Define the 2 measures of centers.
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