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posledela
3 years ago
13

2. What type of association does this

Mathematics
2 answers:
Romashka [77]3 years ago
3 0
I might be wrong but I feel like it is none
Inessa05 [86]3 years ago
3 0
None..................
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Plz can someone help me show work for these two problems!! <br><br> 3x + y = 13 <br><br> 2x - y = -1
Alisiya [41]

Answer:

3x +y = 13

Or, x=13-y/3......eqn(i)

Now putting the value of x

2x - y = - 1

Or, 2(13-y/3) - y = - 1

Or, 26 - 2y /3 - y = -1

Or, 26 - 2y - 3y = - 3

Or, 26 - 5y = - 3

Or, - 5y = - 3 - 26

Or,y = - 39/ (- 5)

Or, y = 7.8~

3 0
3 years ago
There are 3 times as many males as females on the maths course at university. What fraction of the course are female?
inysia [295]

Answer:

1/4

Step-by-step explanation:

Males: 3 units

Females: 1 unit

Total: 4 units

Females/Total: 1/4

5 0
3 years ago
A triangle has side lengths of 6,8, and 9 what type of triangle is it
Strike441 [17]
9^2 < 6^2 + 8^2 

so its acute angled.
5 0
3 years ago
For a biology project, you measure the weight in grams and the tail length in millimeters of a group of mice. The correlation is
olga nikolaevna [1]

Answer:

Step-by-step explanation:

Given that for a biology project, you measure the weight in grams and the tail length in millimeters of a group of mice.

The correlation is r = 0.9

If you had measured tail length in centimeters instead of millimeters, what would be the correlation?

For this we must understand the meaning of correlation and formula

Correlation is a measure of linear association between the two variables and always lie between -1 and 1

This is got by dividing covariance of (x,y) by product of std deviation of x and y

So because we changed the units of length correlation coefficient would not change.

It would remain the same as 0.90

8 0
3 years ago
Give an example of when and why one would use a continuity correction factor?
iris [78.8K]

Answer:

An example of when a continuity correction factor can be used is in finding the number of tails in 50 tosses of a coin within a given range .

and continuity correction factor is used when a continuous probability distribution is used on a discrete probability distribution

Step-by-step explanation:

An example of when a continuity correction factor can be used is in finding the number of tails in 50 tosses of a coin within a given range .

continuity correction factor is used when a continuous probability distribution is used on a discrete probability distribution,  continuity correction factor creates an adjustment on a discrete distribution while using a continuous distribution

3 0
3 years ago
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