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Georgia [21]
3 years ago
15

A store and a bank would both charge fees for _____.

Mathematics
1 answer:
AysviL [449]3 years ago
8 0
Taxes  you have to pay extra because of taxes
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If there are 100 students in a class and 10% love math and the rest love reading.How many in percentage like reading.
suter [353]
The answer is 90%. Because 10% love math you subtract 100
4 0
3 years ago
Read 2 more answers
For each given p, let ???? have a binomial distribution with parameters p and ????. Suppose that ???? is itself binomially distr
pshichka [43]

Answer:

See the proof below.

Step-by-step explanation:

Assuming this complete question: "For each given p, let Z have a binomial distribution with parameters p and N. Suppose that N is itself binomially distributed with parameters q and M. Formulate Z as a random sum and show that Z has a binomial distribution with parameters pq and M."

Solution to the problem

For this case we can assume that we have N independent variables X_i with the following distribution:

X_i Bin (1,p) = Be(p) bernoulli on this case with probability of success p, and all the N variables are independent distributed. We can define the random variable Z like this:

Z = \sum_{i=1}^N X_i

From the info given we know that N \sim Bin (M,q)

We need to proof that Z \sim Bin (M, pq) by the definition of binomial random variable then we need to show that:

E(Z) = Mpq

Var (Z) = Mpq(1-pq)

The deduction is based on the definition of independent random variables, we can do this:

E(Z) = E(N) E(X) = Mq (p)= Mpq

And for the variance of Z we can do this:

Var(Z)_ = E(N) Var(X) + Var (N) [E(X)]^2

Var(Z) =Mpq [p(1-p)] + Mq(1-q) p^2

And if we take common factor Mpq we got:

Var(Z) =Mpq [(1-p) + (1-q)p]= Mpq[1-p +p-pq]= Mpq[1-pq]

And as we can see then we can conclude that   Z \sim Bin (M, pq)

8 0
3 years ago
Am i doing this right
klasskru [66]
Good luck >>>>>>>>>>>>>>

5 0
3 years ago
Colin invests £14100 into his bank account. He receives 9.0% per year simple interest. How much will Colin have after 5 years? G
Ivahew [28]

Answer:

6350

Step-by-step explanation:

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3 years ago
How to find the distance between two integers using the difference
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To get from −8 − 8 to the answer you really want, just take the absolute value! That is, to find the distance between<span> any </span>two<span> real numbers: subtract them in any order</span>
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3 years ago
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