1. When two variables are correlated, it means that one is the cause of the othe

Question

1. When two variables are correlated, it means that one is the cause of the other. True or false?

2. The following table shows the LOS for a sample of 11 discharged patients. Using the data in the table, calculate the mean, range, variance, and SD, and then answer questions e and f. Round the variance and SD to one decimal place. Mean Range Variance SD What value is affecting the mean and SD of this distribution? Does the mean adequately represent this distribution? If not, what would be a better measure of central tendency for this data set?

241

Patient Lenght of stay   LOS Mean (5) (X ¯¯¯ X )   (LOS Mean)2 (X ¯¯¯ X )2

1 1

2 3

3 5

4 3

5 2

6 29

7 3

8 4

9 2

10 1

11 2

Explanation / Answer

Question 1

When two variables are correlated it means that one is the probability that cause of the other.

Answer :

False

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