4:3, do 500÷4 which is 125 then do 125×3 which is 375 so 375 people own a flip phone and 875 people own a smart phone
B.Somewhat likely; recurring debt is very close to what is allowed.
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<u>0.0931</u><u> is the </u><u>probability </u><u>that at least 10 pay in cash.</u>
What is a probability simple definition?
The ratio of the number of outcomes in an exhaustive set of equally likely outcomes that produce a given event to the total number of possible outcomes.
Using binomial distribution with n= 15, and p = 0.40,
P(8<X<12) = P(X=9)+P(X=10) + P(X=11)
= 0.0612+0.0245+0.0074
= 0.0931
Therefore,0.0931 is the probability that at least 10 pay in cash.
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Vera's office would recycle 9 kilograms of paper over 7 weeks. <span />