Aresearcher measures iq and weight for a group of college students. what kind of correlation is likely to be obtained for these two variables?
a) a positive correlation
b) a negative correlation
c) a correlation near zero*
d) a correlation near one

Option b

Step-by-step explanation:

Given that a  researcher measures IQ and weight for a group of college students.

In general, we think that the weight has nothing to do with IQ of a person and hence not correlated.

But if we go deep, we find that after a certain weight, the person becomes lazy and inactive with a chance to have reduced IQ

Weight gain causes also health problems including less activity of both brain and body and hence there is a chance for less IQ

So we find that as weight increases iq decreases and when weight decreases, IQ increases.

Thus we can say that there is a negative correlation but not necessarily near to one.

Hence option b is right

For the first question , the answer is 5 as u can see that the no. has a pattern of first minus 2 and then plus one . E.g. 10minus 2 is 8 and then the third no. is 8 plus 1 , which is 9 .
For the second question , the answer is 6.25 as the no. has a pattern of dividing by 2 .