Correlation coefficient formulas are used to find how strong a relationship is between data.
The formulas return a value between -1 and 1, where:
• 1 indicates a strong positive relationship. A correlation coefficient of 1 means that for every positive increase in one variable, there is a positive increase of a fixed proportion in the other.
• -1 indicates a strong negative relationship. A correlation coefficient of -1 means that for every positive increase in one variable, there is a negative decrease of a fixed proportion in the other.
• A result of zero indicates no relationship at all. Zero means that for every increase, there isn’t a positive or negative increase. The two just aren’t related.
Therefore, the correct answer is: The linear correlation coefficient is always between -1 and 1.
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Answer:
It doesn't matter the order in which you add two integers with the same sign, because the outcome will remain the same.
Step-by-step explanation:
Answer:
The point P' is the image of the point P under the translation
The coordinates of the point P are (6,0)
We need to determine the coordinates of the point P'
Coordinates of the point P':
The coordinates of the point P' can be determined by substituting the coordinates of the point P(6,0) in the translation.
Thus, substituting the coordinates, we have;
Simplifying the coordinates, we get;
Thus, the coordinates of the point P' is (0,-1)
Step-by-step explanation:
1/4(6) + 3(7)
6/4 + 21
3/2 + 42/2
45/2= 22 1/2
Answer: a. 0.1031; fail to reject the null hypothesis
Step-by-step explanation:
Given: Significance level :
The test statistic in a two-tailed test is z = -1.63.
The P-value for two-tailed test : [By p-value table]
Since, 0.1031 > 0.05
i.e. p-value >
So, we fail to reject the null hypothesis. [When p< then we reject null hypothesis ]
So, the correct option is a. 0.1031; fail to reject the null hypothesis.
Answer:
im going with B
Step-by-step explanation: