Which of the following pairs of values for x and y would
2 answers:
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The better statistics which can be used to compare the given distributions are mean and standard deviation.
<h3>What is a z-core?</h3>A z-core is also referred to as a standard score and it can be defined as a statistical measure of the distance between a data point (raw score) and the mean, especially when standard deviation units are used.
In Mathematics, z-scores can either be negative or positive and it is generally calculated by using this formula:
<u>Where:</u>
- x is the observed data or sample mean.
- u is the mean.
is the standard deviation.
In conclusion, the better statistics which can be used to compare the given distributions are mean and standard deviation.
Read more on standard deviation here: brainly.com/question/4302527
Answer:
see explanation
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
(7)
Here m = - 3 and (a, b) = (5, 1), thus
y - 1 = - 3(x - 5) ← equation of line
(8)
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = A(- 2, 1) and (x₂, y₂ ) = B(- 1, 3)
m = = 2
Using any of the 2 points as (a, b)
Using m = 2 and (a, b) = (- 2, 1), then
y - 1 = 2(x - (- 2)), that is
y - 1 = 2(x + 2) ← equation of line