Reposting question because I didn't get the correct answers last time, Write an equation of the line in slope-intercept form. pi
cture attached
2 answers:
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Answer:
The value that corresponds to the 75th percentile is 16.35.
Step-by-step explanation:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean and standard deviation
, the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
A normal distribution has a mean of 15 and a standard deviation of 2.
This means that
Find the value that corresponds to the 75th percentile.
This is X when Z has a pvalue of 0.75. So X when
The value that corresponds to the 75th percentile is 16.35.
The equation of the line is 2x + 5y = 11 hat passes through the points (3,1) and (-2,3)
<h3>What is a straight line?</h3>A straight line is a combination of endless points joined on both sides of the point.
The slope 'm' of any straight line is given by:
We have two points:
(3,1) and (-2,3)
The equation of the line passing through the points (3,1) and (-2,3)
5y - 15 = -2x - 4
2x + 5y = 11
Thus, the equation of the line is 2x + 5y = 11 hat passes through the points (3,1) and (-2,3)
Learn more about the slope of the straight line here:
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