Probability Question

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Step 1

Mean=i=1n(xifi)i=1n(fi)=(1×2)+(2×4)+(3×2)+(4×3)+(5×2)+(6×3)2+4+2+3+2+3=5616=3.5

 

 

 

Step 2

b) There are total  2+4+2+3+2+3=16 values in the data.

So, the average of 162=8th and 162+1=9th value will be the median. 

From the table we see that the 8th value is 3. and the 9th value is 4.

Average of 3 and 4 is=(3+4)2=3.5

 

So median is 3.5

 

 

 

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