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asambeis [7]
3 years ago
14

The calories per serving for three sports drinks are 60 cal, 42 cal, and 90 cal. The probability of choosing a 60 calorie drink

is 1/6. The probability i choosing the 42 calorie is 1/2. The probability of choosing a 90 calorie drink is 1/3. what is the expected value of calories in a drink
Mathematics
1 answer:
dsp733 years ago
7 0
The expected value is given by:
E(x)= ∑x*p(x)
thus the expected value of calories will be given by:
E(x)=1/6*60+1/2*42+1/3*90
E(x)=10+21+30
E(x)=61

the answer is 61
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