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ad-work [718]
3 years ago
5

A fitness center runs a contest for customers who enroll in its annual membership plan. The customers are allowed to draw a coup

on from a jar that contains 20 coupons for 1 month of extended membership, 10 coupons for 1.5 months of extended membership, and 5 coupons for 2 months of extended membership.
Assuming a month has 30 days, if the expected value of extended membership (in days) on the first draw is given by the expression A + B + C, identify the correct numerical expressions for A, B, and C.
Mathematics
2 answers:
krek1111 [17]3 years ago
6 0

1. 20/35(30)=17.142

2. 5/35(60)=17.142

3. 10/35(60)=17.142



olganol [36]3 years ago
5 0

Answer: A = 24 , B = 12.85, C = 8.57

Step-by-step explanation:

Since we have given that

Number of coupons for 1 month = 20

Number of coupons extended for 1.5 months = 10

Number of coupons extended for 2 months = 5

Total number of coupons is given by

20+10+5=35

1 month = 30 days

So, Expected value of extended membership = A+B+C

Here, A is given by

\dfrac{20}{35}\times 30\\\\=24

B is given by

\dfrac{10}{35}\times 1.5\times 30\\\\=12.85

C is given by

\dfrac{5}{35}\times 2\times 30\\\\=8.571

So, The expected value of extended membership is given by

A+B+C=24+12.85+8.57=45.42

Hence, A = 24 , B = 12.85, C = 8.57

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