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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
14 Dec 2021

Given information

Let random variable X represents the number of colors on a national flag.

X Freq
1 1
2 7
3 18
4 7
5 6

 

Step-by-step explanation

Step 1.

Table for calculating mean and standard deviation :


       
1 1 1 1
2 7 14 28
3 18 54 162
4 7 28 112
5 6 30 150
Total 39 127 453

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