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zysi [14]
3 years ago
12

Find the probability that a data value picked at random from a normally distributed population will have a standard score that c

orresponds to the following:
Less than 3.00
Mathematics
1 answer:
DerKrebs [107]3 years ago
8 0
P(z < 3)
From the normal distribution table,
P(z < 3) = 0.9987
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Plsss hello me I’m going to get a whooping !!
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Answer:

411, 467, 523

Step-by-step explanation:

add 56 to each cycle

411+56 = 467

467+56 = 523

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Find the area of an equilateral triangle with a side of 6 inches
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Answer:

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The sum of digits in a two-digit number is 7. If the digits switch place you get a number bigger by 27. What's that number?
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Step-by-step explanation:

the solution is found in the images above

4 0
3 years ago
The game of American roulette involves spinning a wheel with 38 slots: 18 red, 18 black, and 2 green. A ball is spun onto the wh
solong [7]

Answer:

a)- \frac{1}{19}

b) SD(x) =  0.9986

Step-by-step explanation:

Given data:

Number of slots 38

slots for red ball 18

slots for black = 18

slots for green 2

outcomes       Red      Black or Green

Profit                  1                 -1

P(X)                   18/38       20/38

Expected value of wining,  

E(x) = 1. \frac{18}{38} + (-1) \frac{20}{38} = - \frac{2}{38} = - \frac{1}{19}

B) Standard deviation of winning SD(x)

SD(x) = \sqrt{(1- (-\frac{1}{19})^2 .\frac{18}{38} + (1- (-\frac{1}{19})^2 .\frac{20}{38}}

SD(x) = \sqrt{\frac{360}{361}

SD(x) =  0.9986

3 0
3 years ago
30% of the library books in the fiction section are worn and need replacement. 10% of the nonfiction holdings are worn. The libr
Nady [450]

Answer:

0.0048 or 0.48%

Step-by-step explanation:

Please see the attached files for details.

8 0
3 years ago
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