I hope this helps you
18×2,5=18×25/10=9×5=45
45-18=27
Answer: y= -2x+12
Step-by-step explanation:
First, you know that it would be a plus 12, since the y-intercept is 12. Then, you would find the correlation between x and y. That would have a constant of -2. Then, you put it in slope-intercept form.
The answer will be Mean = 135 Variance = 62 and Standard Deviation = 8
<h3>What is the standard deviation? </h3>
Standard deviation is defined as the amount of variation or the deviation of the numbers from each other.
Given that :
Proportion (p) = 54%
Sample size (n) = 250
Using Normal approximation :
Mean = np
Mean = 250 * 0.54 = 135
Variance = npq ; q = 1 - p = 1 - 0.54 = 0.46
Variance = (250 * 0.54 * 0.46) = 62.1 = 62
Standard deviation = √variance = √62.1
Standard deviation = 7.8803553 = 8
To know more about standard deviation follow
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Answer:
y= -3x -2
Step-by-step explanation:
(0 , -2) and a slope of -3
The -2 is the y-intercept, put the initial point there
Use that point and put the -3 slope
