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3 years ago

30 points if you answer this!

Mathematics

2 answers:

lord [1]3 years ago

8 0

Answer:

Step-by-step explanation:

4y is a term in itself 3 and x separate aren't and 4x + 7 is an equation not a term.

horsena [70]3 years ago

6 0

Answer:

Its 4y.

Step-by-step explanation:

The other answer has more information.

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Answer: awwwww so cute ❤️

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Step-by-step explanation:

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3 years ago

Determine which relation is a function.

Firdavs [7]

By=x+2, as this is the only equation that shows the relation between 2 variables

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3 years ago

Can someone please help. Thanks.

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3 years ago

An ad agency is developing a campaign to promote a business opening in a new mall development. To develop an appropriate mailing

Ipatiy [6.2K]

Answer:

The answer is 1/3 or 0.33

Step-by-step explanation:

Let's consider the following ocurrences:

A: A person has a MasterCard

B: A person has an American Express

The data says:

P(A∩B) = 0.2

P(A without B) = 0.4

P(B without A) = 0.1

Then, P(A) = P(A∩B) +P(A without B) = 0.2+0.4 = 0.6

By conditional probability theory:

P (B/A) = P(A∩B) / P(A) = 0.2 / 0.6 = 1/3 = 0.33

Thus

P(B/A) = 1/3 = 0.33

6 0

4 years ago

Find P(Y|B) from the information in the table.

vova2212 [387]

Answer:

0.4

Step-by-step explanation:

The table with correct formatting is attached in the image below.

We have to find P(Y | B). This is a conditional probability i.e. probability of Y given B.

The formula of conditional probability for two event A and B is:

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

So, for the given case, the formula would be:

$P(Y|B)=\frac{P(Y \cap B)}{P(B)}$

P(Y ∩ B) indicates the probability of Y and B occurring together. Y and B occur together 34 times out of total of 324, so:

$P(Y \cap B)=\frac{34}{324}$

P(B) indicates the probability of occurrence of B. B occurs 85 times in a total of 324. So,

$P(B)=\frac{85}{324}$

Using these values in the formula of conditional probability, we get:

$P(Y \cap B)=\frac{\frac{34}{324}}{\frac{85}{324} }\\\\ =\frac{34}{85}\\\\ =0.4$

Thus, the value of P(Y|B) is 0.4

8 0

3 years ago

Read 2 more answers