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3 years ago

Can someone help I need this asap

Mathematics

1 answer:

balu736 [363]3 years ago

4 0

Answer:

Step-by-step explanation:

Total number of students =100

Number who bought pop corn = 62

Number who bought drinks = 47

Number who bought both =38

Hence number who did not purchase anything = 100-(62+47-38)

=29

Prob that students buys a drink = 47/100 = 0.47

PROB THAT THE student buys a drink/he purchsaed pop corn

= Number for both/number of pop corn

=38/62 =0.613

P(buying pop corn) = 0.62 and P(drink) = 0.47

Product of these = 0.62*0.37=0.2356

Thus we find product is not equal to Prob of purchsing both

Hence cannot be independent

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Answer:

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Step-by-step explanation:

The probability of failure is: q = 0.015

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The load loss will be when at least one unit fails.

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PLEASE HELP 25 POINTSSS

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