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Bond [772]
3 years ago
11

What best describes the association between variables A and B?

Mathematics
1 answer:
Leni [432]3 years ago
4 0
A postive linear associtation




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How do you solve five times a number decreased by 18 minus 4 times the same number is -36
Sladkaya [172]
x-searched\ number\\\\5x-18-4x=-36\\\\5x-4x=-36+18\\\\x=18\\\\Searched\ number\ is\ 18.
8 0
3 years ago
Exercise 4.16. We choose 500 numbers uniformly at random from the interval [1.5, 4.81. (a) Approximate the probability of the ev
givi [52]

Answer:

a) 0.0801

b) 0.1910

Step-by-step explanation:

a) probability of the event that numbers start with the digit 1 =P(1.5<X<2) =(2-1.5)/(4.8-1.5)=0.1515

Here mean =np =500*0.1515 =75.76

std deviation =(np(1-p))1/2 =8.02)

probability of the event that less than 65 of the numbers start with the digit 1=P(X<65)=P(Z<(64.5-75.76)/8.02)

=P(Z<-1.4041)=0.0801

b) probability of the event of the numbers start with the digit 3 =P(3<X<4) =(4-3)/(4.8-1.5)=0.3030

Here mean =np =500*0.3030 =151.52

std deviation =(np(1-p))1/2 =10.28

probability of the event that more than 160 of the numbers start with the digit 3=P(X>160)

=1-P(Z<(160.5-151.52)/10.28)=1-P(Z<0.8743)=1-0.8090 =0.1910

7 0
4 years ago
Explain how a line of best fit can be used to make predictions. You explanation should be at least 3-4 sentences and include at
Dmitrij [34]
The line of best fit helps you make predictions based upon ordered pairs that you have plotted. The independent variable is on the x axis. The dependent variable is on the y axis. You find the slope by plugging in the order pairs into a calculator which gives you the line of best fit.

Hope this helped :)
6 0
4 years ago
What are the coordinates of point F?
Allisa [31]

The coordinates of point F are 4 and negative 2.5. Option C is correct.

<h3>What is the best way to understand the Cartesian coordinate plane?</h3>

A Cartesian coordinate plane is a two-dimensional plane with infinite dimensions. On an endless 2d plane, any two-dimensional figure may be drawn. A location is assigned to each point on a Cartesian plane.

It is the perpendicular distance between that point and the horizontal and vertical axes, which are commonly referred to as the x-axis and y-axis.

The location is then written as (a,b), where 'a' is the point's shortest distance from the y-axis, 'b' is the point's shortest distance from the x-axis, and 'c' is the point's shortest distance from the x-axis.

'c' is the point's shortest distance from the x-axis, and 'c' is the point's shortest distance from the x.

The coordinates of point F are 4 and negative 2.5.

Hence, the Option C is correct.

To learn more about the Cartesian plane refer;

brainly.com/question/27538987

#SPJ1

4 0
3 years ago
Choose all of the expressions that are equivalent to 3(4x + 3).
torisob [31]

Answer:

12x+9

Step-by-step explanation:

3(4x + 3)

Expand the brackets.

3(4x)+3(3)

Multiply.

=12x+9

5 0
3 years ago
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