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Luda [366]
3 years ago
7

Which statement best describes the association between variable X and variable Y? Question 1 options: perfect negative associati

on perfect positive association moderate negative association moderate positive association

Mathematics
2 answers:
polet [3.4K]3 years ago
5 0
The statement which best describes the association between the variables X and Y is the <em>moderate positive association</em>. It is observable that the values of X and Y are increasing, however, not in a perfect manner as there are some minor deviations. But nonetheless, the direction is clear and the values are close to each other so they have a moderate positive association.
sineoko [7]3 years ago
4 0

Answer:

Perfect positive association

Step-by-step explanation: It right

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(Add 34 and 6) , Times 3 as an expression
Colt1911 [192]

(34 + 6 ) * 3


there would be no equal sign since it is an expression

3 0
3 years ago
70% of 600 of what number?
ASHA 777 [7]

Answer:

number = 420

Step-by-step explanation:

70% * 600 =  number

.70 * 600 = number

420 = number

5 0
3 years ago
A researcher wishes to estimate the proportion of X-ray machines that malfunction. A random 275 sample of machines is taken, and
Dominik [7]

Answer:

Following are the solution to the given question:

Step-by-step explanation:

95\% Confidence Interval for both the percentage of all x-ray machines

p = the machinery's share is not working:

= \frac{228}{275}\\\\ = 0.829

\text{Margin of Error} = Z_{(\frac{\alpha}{2})} \times \sqrt{( p \times (1-p)}{n})

                         = 1.96 \times \sqrt{(0.829 \times \frac{0.171}{275})} \\\\= 1.96 \times 0.023 \\\\= 0.045

Lower 95\% Confidence interval = p - error margin = 0.829 - 0.045 = 0.784

Upper 95\% Confidence Interval = p + error margin= 0.829 + 0.045 = 0.874

So, 95\% Confidence Interval = ( 0.78 , 0.87 )

4 0
2 years ago
Han ran 10 meters in 2.7 seconds. Priya ran 10 meters in 2.4 seconds. How long would it take han to run 50 meters.
Lina20 [59]

Hans would take 13.5 seconds to run 50 meters

Priya would take 12 seconds to run 50 meters

--------------------------------------------------------------------------------

Since they each ran 10 meters for a certain amount of time you would multiply the seconds by 5 since 10x5=50

When you do that you get

13.5 for Han's time by multiplying 2.7x5=13.5

and

12 seconds for Priya's time by multiplying 2.4x5

3 0
3 years ago
Solve the following system of equations<br> 3X +5Y=16<br> 2X+7Y=7
RoseWind [281]

Answer:

equals 56y+3x

Step-by-step explanation:

8 0
3 years ago
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