Using GC to calculate Expectation and Variance of Discrete Random Variable

Example 1

question

Solution

Enter the data in the GC as follows:

1

2

3result

result 1

Variance can also calculated using the GC as follows:

a

b

c

Example 2

RI 2018 J2 MYE Q13i

RI 18 J2 MYE 13i

IMG_7422

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