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What pattern would appear in a graph of a Pearson correlation of r equals 0.80?
Wiki User
∙ 12y ago
Points tightly clustered around a line that slopes up to the right
Wiki User
∙ 12y ago
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If class attendance explained 16 percent of the variation in grade index among students what is the numerical value of the correlation between percentage of classes attended and grade index?
correlation equals 16% thus r squared (r^2) = 0.16 thus r = 0.4 or 40%
In a correlation coefficient the difference between r and r squared?
r is correlation and can be positive or negative. If you want an analogy, consider it like the slope of a line. If the slope is negative, the line slopes downward and therelationship between the two variables (x & y) are inverse. That is, as x increases, y will decrease. If r is positive, then the line slopes upward and as x increases so does y. Now if x equals or is close to zero, there is no significant relationship between the two variables ... as x increases y does not change or fluctuates between positive and negative changes. The closer r is to +1 or -1, the stronger the relationship between x and y.
The standard deviation of a sample of 10000 observations equals 121 The variance of the sample equals?
It equals 14641.
What is the area under the normal curve between z equals 0.0 and z equals 2.0?
What is the area under the normal curve between z equals 0.0 and z equals 2.0?
How can you determine the probability when x equals 2 in a binomial situation where n equals 7 and pie equals 0.25?
eight eight
For the data below compute the Pearson correlation X Y 1 2 2 3 4 2 5 6 8 7 x equals 20 y equals 20 equals 40?
No, the Pearson coefficient does not equal 40.
When there is no linear correlation the correlation coefficient equals?
0
What will be the correlation for the graph of this equation y equals 14x?
Since y=14x is a perfect linear relation, the correlation would be 1.
Which value of r indicates a stronger correlation r equals 0.834 or r equals -0.925?
r = -0.925 is stronger.
If r equals 5z and 15z equals 3y - then r equals?
It would appear that r = y
3.8 meters equals how many decigram?
There is no correlation between meters (measure of length) and decigram (measure of weight).
Construction of two random variables such that their correlation coefficient equals -1?
y = cos ( x ). z = cos ( x + 180 degrees ).
What is the function of k if x equals 4 and y equals -12?
16
160 GB equals how many ghz?
160 GB has absolutely no correlation to Ghz. One is a measure of capacity; the other is a way of measuring the speed of a processor. It's like asking "20 ounces equals how many MPH?"
What is 4a equals 4-b 4a equals 2-b?
They appear to be the equations of two parallel lines in the a-b plane.
If class attendance explained 16 percent of the variation in grade index among students what is the numerical value of the correlation between percentage of classes attended and grade index?
correlation equals 16% thus r squared (r^2) = 0.16 thus r = 0.4 or 40%
Complete the pattern. twelve equals 6.six equals 3..eight equals?
5. It's the number of letters.
