The probability of a person having a normal cholesterol ... · Distance Learning Distance-learning...
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Transcript of The probability of a person having a normal cholesterol ... · Distance Learning Distance-learning...
Voinea, Alexandra
The probability of a person having a normal cholesterol level is 0.55, or 55%.
Voinea, Alexandra
Two reasons!
Voinea, Alexandra
Voinea, Alexandra
P(3 or 4 or 5) = P(3)+P(4)+P(5) = 0.252+0.192+0.134= 0.578P(3 or 4 or 5) = 1 - P(1 or 2) = 1 - (.186+.236) = 0.578The probability of the chosen student earning a 3 or better is 0.578
Voinea, Alexandra
Voinea, Alexandra
P(not 1) = P(2)+P(3)+P(4)+P(5) = .186+.252+.192+P(not 1) = 1 - P(2 or better) = 1 - (.186+.252+.192+.134) = 0.764The probability of the chosen student didn’t get a 1 is 0.764
Voinea, Alexandra
Voinea, Alexandra
= 1 - P(24 and older)=1 - (0.57 = 0.43
Voinea, Alexandra
Voinea, Alexandra
= 1 - P(Graduate)=1 - 310/500 = 190/500 = 0.38
Voinea, Alexandra
1 - P(Graduate)=1 - 310/500 = 190/500 = 0.38
Voinea, Alexandra
Voinea, Alexandra
0.858