Answer:
Student t-distribution.
Step-by-step explanation:
In this scenario, a test is being conducted to test the difference between two population "means" using data that are gathered from a matched pairs experiment. If the paired differences are normal, then the distribution used for testing is the student t-distribution.
In Statistics and probability, a student t-distribution can be defined as the probability distribution which can be used to estimate population parameters when the population variance is not known (unknown) and the sample population is relatively small. The student t-distribution is a statistical distribution which was published in 1908 by William Sealy Gosset.
A student t-distribution has a similar curve with the normal distribution curve, except that it is fatter and a little bit shorter.
Answer:
B
When I get questions like this, I just substitute each ordered pair in. In this case, I thought that B didn't seem that it would fit, but I substituted to make sure, and this is what I got:
1-2=9...
...which obviously can't be true, so I knew that B was the correct answer.
Hope I helped! Sorry if I'm wrong. :)
~Mschmindy
Hello,
6x²+2x-20=0
==>6x²+12x-10x-20=0
==>6x(x+2)-10(x+2)=0
==>(x+2)(6x-10)=0
==>x=-2 or x=5/3
Any picture? Example: if the number is 36 you would round to 40 and if the number was 34 you would round to 30 if it is 35 you choose what to round to. It depends on the last digit.
Answer:
Step-by-step explanation:
3 2/4