Choose which of the pair of events below best matches the assumption of independ

Question

Choose which of the pair of events below best matches the assumption of independent events. O Event A: dam at top of WI River fails; Event B: dam at bottom of WI River fails O Event A: Father's height is above average: Event B: Son's height is above average O Event A: GEs stock price yesterday increases; Event B: GE's stock price today increases O Event A: Length of first Bluegill caught fishing this weekend is over 16 inches; Event B: Length of second Bluegill caught fishing this weekend is over 16 inches

Explanation / Answer

The assumptions of independent events is

say A and B are two independent events then P(A and B)= P(A) * P(B)

In first example fail of dam at top of WI river indicates the fall of dam at the bottom of the river so they are not necessarily independent

similarly son's hight is dependent on father's height and the value of stock market today is also dependent on the value of stock market on yesterday.

but the size of blue grills are independent to each other.

so the last optin is correct and they are the perfect set of independent events.  

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