#1 if your scatterplot shows a big round cloud of scores, what is most likely true of your statistics. 
select one:
a. your cohen's d is high
b. your variables are not correlated.

#2
which of the following is true of correlations?
select one:
a. they are used to compare the mean of multiple groups
b. correlation is a general term used to mean that something was tested statistically and the result was significant. 
c. each variable can theoretically only be related to one other variable.
d. correlations indicate the strength and direction of the relationship between two variables.

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

it would be 198 people.

hope it

in counting the number of heads in 4 coin flips, the probability that we get exactly one head is the probability that we get anyone of the following 4 outcomes: httt, thtt, ttht, or ttth. each has probability 1/16, so the probability to get exactly one head in 4 flips is 1/16 + 1/16 + 1/16 + 1/16 = 4/16 = 1/4.