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3 years ago

Iliana is shopping at a baseball card show. The table shows prices for cards on special.

Mathematics

2 answers:

Leokris [45]3 years ago

6 0

free points and what is the answer though

castortr0y [4]3 years ago

3 0

I can politely answer your queation if you could add an attachment of the graph.

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Alice searches for her term paper in her filing cabinet, which has several drawers. She knows thatshe left her term paper in dra

katen-ka-za [31]

You made a mistake with the probability $p_{j}$ , which should be $p_{i}$ in the last expression, so to be clear I will state the expression again.

So we want to solve the following:

Conditioned on this event, show that the probability that her paper is in drawer $j$ , is given by:

(1) $\frac{p_{j} }{1-d_{i}p_{i} } , if j \neq i,$ and

(2) $\frac{p_{i} (1-d_{i} )}{1-d_{i}p_{i} } , if j = i.$

so we can say:

$A$ is the event that you search drawer $i$ and find nothing,

$B$ is the event that you search drawer $i$ and find the paper,

$C_{k}$ is the event that the paper is in drawer $k, k = 1, ..., n.$

this gives us:

$P(B) = P(B \cap C_{i} ) = P(C_{i})P(B | C_{i} ) = d_{i} p_{i}$

$P(A) = 1 - P(B) = 1 - d_{i} p_{i}$

Solution to Part (1):

if $j \neq i$ , then $P(A \cap C_{j} ) = P(C_{j} )$ ,

this means that

$P(C_{j} |A) = \frac{P(A \cap C_{j})}{P(A)} = \frac{P(C_{j} )}{P(A)} = \frac{p_{j} }{1-d_{i}p_{i} }$

as needed so part one is solved.

Solution to Part(2):

so we have now that if $j$ = $i$ , we get that:

$P(C_{j}|A ) = \frac{P(A \cap C_{j})}{P(A)}$

remember that:

$P(A|C_{j} ) = \frac{P(A \cap C_{j})}{P(C_{j})}$

this implies that:

$P(A \cap C_{j}) = P(C_{j}) \cdot P(A|C_{j}) = p_{i} (1-d_{i} )$

so we just need to combine the above relations to get:

$P(C_{j}|A) = \frac{p_{i} (1-d_{i} )}{1-d_{i}p_{i} }$

as needed so part two is solved.

8 0

4 years ago

Javi are selling cookies at different rates. She charges $1.25 per cookie when a customer buys fewer than 12 cookies. If a custo

gavmur [86]

Answer:

1.25÷12=9.6

12÷0.75=16

16÷9.6=1.6666667

3 0

3 years ago

46 is greater than x.

s2008m [1.1K]

Aaaaaaaaaaaaaaaaaaaa

3 0

3 years ago

Read 2 more answers

Krya is playing a card game. Black cards are worth points while red cards take points away. What is her score if she has a black

Nitella [24]

Answer:

her score would be -22

Step-by-step explanation:

20-42=-22

8 0

3 years ago

A radio station played a new hit song 34 times a day for 4 days. What partial products would you use to find how many times the

Flauer [41]

Answer:

How many radio stations played that song and how often the song was played on each station.

3 0

4 years ago