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1.4k
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How do I compare the count of a value in each year while having a different sanple size each year.
How do I accurately compare between the number of something a survey measure from my employees each year with a varying umber of survey engagement and employee size?If I ...
1 1 vote
0 0 answers
501
501 views
Using aggregate data to generate observation-level data statistically sound?
Context: In the realm of Paid Search Marketing. Current reporting does not provide event level data only aggregate totals with different segments. Want to compare distri...
2 2 votes
2 2 answers
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1.0k views
What will be probability for the data items within mean +- 1, +-2, +-3 standard deviation?
1 1 vote
1 1 answer
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What is the rule that determines percentages with the mean +- 1,2 or 3 standard deviations?
1 1 vote
1 1 answer
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1.1k views
How much percentage of data items are consumed within mean +-1 , +-2, +-3 standard deviation?
1 1 vote
1 answers 1 answer
971
971 views
What is a test statistic in hypothesis testing and how does it relate to the p-value?
1 1 vote
1 answers 1 answer
750
750 views
What is sampling error?
1 1 vote
1 1 answer
878
878 views
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...
1 1 vote
1 1 answer
3.2k
3.2k views
In statistics, whats the difference between contingency and frequency tables?
2 2 votes
1 1 answer
1.6k
1.6k views
Define measures of center (Median and Mode) ?
Define the 2 measures of centers.
1 1 vote
1 1 answer
869
869 views
Calculate IQR(Inter Quartile Range) of {18, 24, 19, 16, 21}?
1 1 vote
1 1 answer
682
682 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?...
1 1 vote
0 0 answers
774
774 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?
4 4 votes
1 1 answer
1.2k
1.2k views
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?
2 2 votes
1 answers 1 answer
643
643 views
What is a discrete random variable?
0 0 votes
1 answers 1 answer
861
861 views
What is the difference between permutation and combination?
0 0 votes
1 answers 1 answer
911
911 views
What is the difference between Qualitative and Quantitative data?
2 2 votes
1 1 answer
741
741 views
What is binomial experiment and when do we use it?
2 2 votes
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415
415 views
What is "Random Sampling"?
Define random sampling
2 2 votes
1 1 answer
1.3k
1.3k views
When should we use permutation and combination?
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