Answer:
625
Step-by-step explanation:
25x25 can be broken down into 20 x 25 and 5 x 25
20 x 25 is 10 x 25 x 2
10 x 25 is 250 and 250 times 2 is 500
25 x 5 is 125.
500+125 is 625.
Answer:
How many miles does each member of the biking club ri
de>
Step-by-step explanation:
This question is statistical, because 1) it provides a thing for you to study (how many miles does each member ride, as well as 2) provides (hopefully) enough respondents (the members of the biking club) that it will not skew the statistics.
~
Answer:
A. positive slope.
Step-by-step explanation:
In the least square linear regression of Y on X, the straight line of best fit is given by,
------------------(1)
[where is the estimated value of Y]
Clearly, here,
Slope pf the line = ---------------------------------(2)
Y- intercept = -----------------(3)
and,
X - intercept = ----------------(4) [putting in (1) and taking the value of X]
So,
since
[since or will result in a degenerate distribution, hence these cases are discarded]
so, correlation coefficient = > 0 implies
A. positive slope. [as evident from (1)]
clearly from (3) and (4) all the other options are false.
Answer:
−
2
x
=
−
8
Step-by-step explanation: