Answer:
29/8
Step-by-step explanation:
13/8+(3/2+7/4)
13/8+(6/4+7/4) (convert common denominators)
13/8+13/4 (add parentheses)
13/8+26/8 (convert common denominators)
29/8 (add)
Answer:
In order to test the hypothesis if the correlation coefficient it's significant we have the following hypothesis:
Null hypothesis:
Alternative hypothesis:
The statistic to check the hypothesis is given by:
And is distributed with n-2 degreed of freedom. df=n-2=10-2=8
For this case the null hypothesis represent that we don't have association betwen the dependent variable Y and the independent variable X and that means r=0. So then the best option for this case is:
The null hypothesis for the Pearson correlation coefficient states that the correlation coefficient is zero
Step-by-step explanation:
Previous concepts
The correlation coefficient is a "statistical measure that calculates the strength of the relationship between the relative movements of two variables". It's denoted by r and its always between -1 and 1.
And in order to calculate the correlation coefficient we can use this formula:
Solution to the problem
In order to test the hypothesis if the correlation coefficient it's significant we have the following hypothesis:
Null hypothesis:
Alternative hypothesis:
The statistic to check the hypothesis is given by:
And is distributed with n-2 degreed of freedom. df=n-2=10-2=8
For this case the null hypothesis represent that we don't have association betwen the dependent variable Y and the independent variable X and that means r=0. So then the best option for this case is:
The null hypothesis for the Pearson correlation coefficient states that the correlation coefficient is zero
What we know:
Elena and Gary have a talk show on tv. Elena has been in 525 episodes of the show, and gary has been in 325 episodes.
A ratio is a relationship of two numbers a, b and is written a:b
What is the ratio of episodes with Gary to episodes with Elena?
Gary = a = 325
Elena = b = 525
Ratio is 325:525 which reduces to 13:21
The ratio of episodes with Gary to episodes with Elena is 13:21
Answer:
110
Step-by-step explanation:
Im not sure but the GCF of 10 and 11 should be 110. I hope this helps.