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3 years ago

Help me with maths please

Mathematics

1 answer:

jolli1 [7]3 years ago

4 0

Answer:

i don't know this answer but i do know something about math i know a square plus b square = c square

Step-by-step explanation:

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Ted and Meg have each drawn a line on the scatter plot shown below:

expeople1 [14]

Answer:

A.)Line P, because it is closest to most data points

Step-by-step explanation:

The line of best fit is a line which best represents the data and the data points are closely related to it.

It is also known as a trend line.

The line of best fit may pass through, some , none or all of the data points.

Also if the scatter plot does not pass through all the data point then the magnitude of positive residual must be approximately equal to the magnitude of negative residual of the data points.

Hence, by looking at the scatter plot we see that all the data points lie above Line R.

Hence, the Line R will not be a line of best fit.

But all the data points lie close to the line P , hence it act as a line of best fit.

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8 0

3 years ago

Read 2 more answers

What is the absolute value for 10

Nostrana [21]

|10| I think I learned this in sixth grade and pretty sure it's that

5 0

3 years ago

Read 2 more answers

The graph shows the pounds of fruit and vegetables purchased by shoppers who bought both. (8th Grade Math)

vaieri [72.5K]

Because there is no pattern in the graph, we conclude that there is no correlation between the two variables, thus, the correct option is C.

<h3>What statement correctly describes the graph?</h3>

In the horizontal axis, we can see the pounds of fruit bought, while on the vertical axis we can see the pounds of vegetables bought.

If you see the graph, you can see that there is no pattern. Meaning that there is no relation between these two quantities.

So there is no correlation between the variables "pounds of fruit bought" and "pounds of vegetables bought.".

Then the correct option is C.

"There is no association between the pounds of fruit purchased and the pounds of vegetables purchased"

If you want to learn more about correlation, you can read:

brainly.com/question/14289293

3 0

2 years ago

A particle moves on a circle through points which been marked 0,1,2,3,4 (in a clockwise order). At each step it has a probabilit

Sedaia [141]

Answer:

Step-by-step explanation:

Given data:

SS={0,1,2,3,4}

Let probability of moving to the right be = P

Then probability of moving to the left is =1-P

The transition probability matrix is:

$\left[\begin{array}{ccccc}1&P&0&0&0\\1-P&1&P&0&0\\0&1-P&1&P&0\\0&0&1-P&1&P\\0&0&0&1-P&1\end{array}\right]$

Calculating the limiting probabilities:

π0=π0+Pπ1 eq(1)

π1=(1-P)π0+π1+Pπ2 eq(2)

π2=(1-P)π1+π2+Pπ3 eq(3)

π3=(1-P)π2+π3+Pπ4 eq(4)

π4=(1-P)π3+π4 eq(5)

π0+π1+π2+π3+π4=1

π0-π0-Pπ1=0

→π1 = 0

substituting value of π1 in eq(2)

(1-P)π0+Pπ2=0

from

π2=(1-P)π1+π2+Pπ3

we get

(1-P)π1+Pπ3 = 0

from

π3=(1-P)π2+π3+Pπ4

we get

(1-P)π2+Pπ4 =0

from π4=(1-P)π3+π4

→π3=0

substituting values of π1 and π3 in eq(3)

→π2=0

Now

π0+π1+π2+π3+π4=0

π0+π4=1

π0=0.5

π4=0.5

So limiting probabilities are {0.5,0,0,0,0.5}

4 0

3 years ago

The random variable x is the number of occurrences of an event over an interval of ten minutes. It can be assumed that the proba

zlopas [31]

Answer:

The probability that there are 8 occurrences in ten minutes is

option B. 0 .0771

Step-by-step explanation:

Given:

Random Variable = x

Mean number of occurrences in ten minutes is 5.3.

The probability of an occurrence is the same in any two time periods of an equal length

To Find:

The probability that there are 8 occurrences in ten minutes = ?

Solution:

Let X be the number of occurrences of the event X

$X \sim {Pois} (\lambda)$

$\lambda = E(X) = 5.3$

Possion of distribution is given by ,

$P(X=x) = \frac{e^{- \lambda} \lambda^{x}}{x!}$

Substituting the values,

$P(X=8) = \frac{e^{- 5.3} 5.3^{8}}{8!}$

$P(X=8) = \frac{(0.004994) ( 622596.904)}{40320}$

$P(X=8) = \frac{(3109.24894)}{40320}$

P(X=8) = 0.0771

3 0

3 years ago