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tiny-mole [99]
3 years ago
12

When a customer places an order at Ying Ying's bakery, there is an 8\%8%8, percent probability that the customer will report a f

ood allergy. One day, 121212 customers place orders at Ying Ying's bakery.
Assuming that each of the 121212 customers is equally likely to report a food allergy, what is the probability that at least one customer will report a food allergy?
Mathematics
1 answer:
crimeas [40]3 years ago
4 0

Answer: 0.6323

Step-by-step explanation:

Given : The proportion of customer will report a food allergy : p=0.08

One day, 121 customers place orders at Ying Ying's bakery.

If we assume that each of the 12 customers is equally likely to report a food allergy , then we can use Binomial distribution.

Formula for Binomial probability distribution:

P(X=x)=^nC_xp^x(1-p)^{n-x}

, where P(x)= probability of getting success in x trials, n= sample size , p= probability of getting success in each event.

As per given , we have n= 12

p=0.08

Let x denotes the customer will report a food allergy.

Then, the probability that at least one customer will report a food allergy will be :

P(x\geq1)=1-P(x

Hence, the required probability = 0.6323

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