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3 years ago

Calculate for y given that mean of 20,2y,25,y,30 is 27

Mathematics

1 answer:

masha68 [24]3 years ago

3 0

Answer:

y = 218

Step-by-step explanation:

Mean = (Sum of all numbers)/(How many numbers present)

27 = (20 + 2y + 25 + y + 30)/27

27 = (3y + 75)/27

3y + 75 = 729

3y = 729 - 75

3y = 654

y = 218

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4 years ago

Adozen of notebooks cost Rs 480. How Much will 7 note book cost?

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3 years ago

Read 2 more answers

The issue of corporate tax reform has been cause for much debate in the United States. Among those in the legislature, 27% are R

Ilia_Sergeevich [38]

Answer:

The probability Democrat is selected given that this member favors some type of corporate tax reform is 0.6309.

Step-by-step explanation:

Let us suppose that,

R = Republicans

D = Democrats

I = Independents.

X = a member favors some type of corporate tax reform.

The information provided is:

P (R) = 0.27

P (D) = 0.56

P (I) = 0.17

P (X|R) = 0.34

P (X|D) = 0.41

P (X|I) = 0.25.

Compute the probability that a randomly selected member favors some type of corporate tax reform as follows:

$P(X)=P(X|R)P(R)+P(X|D)P(D)+P(X|I)P(I)\\= (0.34\times0.27)+(0.41\times0.56)+(0.25\times0.17)\\=0.3639$

The probability that a randomly selected member favors some type of corporate tax reform is P (X) = 0.3639.

Compute the probability Democrat is selected given that this member favors some type of corporate tax reform as follows:

$P(D|X)=\frac{P(X|D)P(D)}{P(X)} =\frac{0.41\times0.56}{0.3639}=0.6309$

Thus, the probability Democrat is selected given that this member favors some type of corporate tax reform is 0.6309.

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3 years ago

Give me brain like brainliest

lara31 [8.8K]

Ooooppppppp— homie not gettin nun at home I see

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3 years ago

Someone help me with this question please.

grandymaker [24]

It’s 27 because u multiple the first 2 number and it’s a negative then add the rest to it

5 0

4 years ago

Calculate for y given that mean of 20,2y,25,y,30 is 27​

Calculate for y given that mean of 20,2y,25,y,30 is 27