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NNADVOKAT [17]
3 years ago
10

In two common species of flowers, A and B, the proportions of flowers that are blue are  and  , respectively. Suppose that ind

ependent random samples of 50 species-A flowers and 100 species-B flowers are selected. Let  be the sample proportion of blue species-A flowers and  be the sample proportion of blue species-B flowers. What is the mean of the sampling distribution of 
Mathematics
1 answer:
Juliette [100K]3 years ago
4 0

Answer:

Pa - Pb

Step-by-step explanation:

The mean of the distribution of sample differences will always be the difference between the population proportion, That is ; Pa - Pb ; This is because according to the central limit theorem which says the sampling distribution of sample means approaches a normal distribution as sample size gets larger irrespective if the shape of the Population distribution. Hence, the distribution of sample differences will follow a normal distribution and the mean will Hence be the difference in the population mean.

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What is the recursive formula for the sequence defined by the explicit equation an = -6 + 3n?​
Ierofanga [76]

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b

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8 0
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Will give brainliest NEED HELP can some explain how to do this THANKS :D
arlik [135]

Answer:

(x + 13, y + 7)

Step-by-step explanation:

Hello there!

In order to find what the translation rule is, we need to find how much it move to the right/left and up/down

In this case, the line segment VW moved up 7 and to the right by 13

We can get this by checking how far apart the points are

I checked how far apart V and V prime

(V prime is the green V. When a point is primed, its just saying that the point has gone through translation, rotation, dilation, or reflection)

V is 13 units to the left of V prime and 7 units below V prime

This means that, to go from line VW to line V prime W prime, you need to shift the line up 7 units and to the right 13 units

So, the translation rule is (x + 13, y + 7)

*If you don't understand, tell me in the comments, I will try to explain further to your understanding. Thank you, and have a great rest of your day :)*

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A scale model of a giant robot is is 24 centimeters. high, with an arm length of 12 centimeters. The height of the real robot is
Furkat [3]
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