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3 years ago

The question was not clear for me! Help :(

Mathematics

2 answers:

Vsevolod [243]3 years ago

5 0

Answer:

0.1 , 0.2 , 0.05

Step-by-step explanation:

*each column adds to 1*

20 x 1/2 = 10

1/2 x 20 x 0.1 = 1

top left box = 0.1

; 5 x 2 x 0.1 = 1

1/2 x 10 = 5

; 0.2 x 1/2 x 10 = 1

bottom middle box = 0.2

; 5 x 1 x 0.2 = 1

; 2 x 10 x 0.05 = 1

middle right box = 0.05

; 20 x 1 x 0.05

Strike441 [17]3 years ago

3 0

Answer:

are bts gay?? ???????????

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Answer:

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Step-by-step explanation:

For this inequation:

3(x + 8) > 2 (2x + 10)

or 3x +24 > 4x +20

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and we have -x +24> 20

or -x +24 -24 > 20-24

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Answer:

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3 years ago

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The midpoint of AB is M(1, -4). If the coordinates of A are (-3,-6), what are the coordinates of B?

kramer

Answer:

The coordinates of B is (5,-2)

Step-by-step explanation:

In order to find the coordinates of B, you have to use midpoint formula. Then substitute the following values into the formula :

$m = ( \frac{x1 + x2}{2} , \frac{y1 + y2}{2} )$

Let (x1,y1) be A (-3,-6),

Let (x2,y2) be B,

Let midpoint be M (1,-4),

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$by \: comparison, \:$

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3 years ago

Reports on a student’s ACT, SAT, or MCAT usually give the percentile as well as the actual score. The percentile is just the cum

DaniilM [7]

Answer:

The percentile is calculated with the following probability:

$P(X$

And using the z score we got:

$P(X$

So then we can conclude that 31 represent approximately the percentile 81 on the distribution given

He scored better than about 80.98 % of all MCAT takers.

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the scores of a population, and for this case we know the distribution for X is given by:

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Where $\mu=25.3$ and $\sigma=6.5$

And for this case we have a score of 31

The percentile is calculated with the following probability:

$P(X$

And using the z score we got:

$P(X$

So then we can conclude that 31 represent approximately the percentile 81 on the distribution given

He scored better than about 80.98 % of all MCAT takers.

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3 years ago