Private Corporal Sergeant Total Male 150 100 50 300 Female 100 75 25 200 Total 2

Question

                            Private       Corporal    Sergeant    Total

Male                      150             100           50          300

Female                   100               75           25          200

Total                     250             175           75          500

Suppose two people are randomly chosen to provide a combatdemonstration. What is the probability that both selected aresergeants?

What I want to do is just the 75/500 but I don't think it isright also thought of (75/500)(74/499) ??????????????

Explanation / Answer

The answer is indeed (75/500)(74/499)

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