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Author Question: The covariance between two random variables is the correlation between the two variables divided by ... (Read 92 times)

xclash

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on: Jun 24, 2018
The covariance between two random variables is the correlation between the two variables divided by the product of their standard deviations.
 
  Indicate whether the statement is true or false

Question 2

Explain the difference between the terms variable and data. Include an illustration that demonstrates this difference.
 
  What will be an ideal response?


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recede

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Reply #1 on: Jun 24, 2018
Answer to Question 1

FALSE

Answer to Question 2

Variable: a characteristic of interest about each individual element of a population or a sample
Data: refer to the value or values of the variable of interest
Illustration: The age of a person when he/she first attends a professional sporting event would be the characteristic of interest about each person and is a variable. Jim was 17 when he first attended a professional sporting event; 17 is the value of the variable for Jim and is data.


xclash

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Reply 2 on: Jun 24, 2018
Gracias!

momolu

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Reply 3 on: Yesterday
Wow, this really help

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