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mafiozo [28]
3 years ago
8

Would you rather pay for 3 gifts and get 1 free, or Use a coupon for 20% off? Explain you answer.

Mathematics
1 answer:
N76 [4]3 years ago
6 0

Answer:

I would just use the coupon

Step-by-step explanation:

Because why pay the whole price for three gifts just to get one for free when i could just use a coupon and get that one gifts 20% off the regular price

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What is the average of four tenths and five thousandths?
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Renna pushes the elevator button, but the elevator does not move. The mass limit for the elevator is
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Whats the full question ?

Step-by-step explanation:

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3 years ago
One hundred items are simultaneously put on a life test. Suppose the lifetimes
romanna [79]

Answer:

a) \mathrm{E}[\mathrm{T}]=\sum_{\mathrm{H}}^{5} \frac{200}{101-i}

b) \mathrm{Var}[\mathrm{T}]=\sum_{k=1}^{5} \frac{(200)^{2}}{(101-i)^{2}}

Step-by-step explanation:

Given:

The lifetimes of the individual items are independent exponential random variables.

Mean = 200 hours.

Assume, Ti be the time between ( i-1 )st and the ith failures. Then, the T_{i} are independent with \mathrm{T}_{\mathrm{i}} being exponential with rate \frac{(101-i)}{200} .

Therefore,

a) E[T]=\sum_{i=1}^{5} E\left[\tau_{i}\right]

=\sum_{i=1}^{5} \frac{200}{101-i}

\therefore \mathrm{E}[\mathrm{T}]=\sum_{\mathrm{H}}^{5} \frac{200}{101-i}

b)

The variance is given by, \mathrm{Var}[\mathrm{T}]=\sum_{i=1}^{5} \mathrm{Var}[T]

\therefore \mathrm{Var}[\mathrm{T}]=\sum_{k=1}^{5} \frac{(200)^{2}}{(101-i)^{2}}

7 0
4 years ago
A man surveyed a sample of 36 high school students and​ asked, "How many days in the past week have you consumed an alcoholic​ b
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More is needed to answer this question

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8 0
4 years ago
If 7x+2a=3x+5a then x is equivalent to what
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7x+2a=3x+5a

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x = 3a/4

4 0
3 years ago
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