The table below shows the values of y for different values of x:
x 5 7 9 10 11 12 13
y 3 0 -1 -6 3 8 -4
a. the correlation coefficient for the data is 0.0715. which statement is true about the data in the table?
b. there is a strong positive relationship between x and y.
c. there is almost no relationship between x and y.
d. there is a strong negative relationship between x and y.
e. there is a weak negative relationship between x and y.

The correlation calculation only works well for relationships that follow a straight line.

Therefore in this case, the trend is not linear.So there is no correlation.

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

2 over 5 and 4 over 15

don’t know last one sorry

step-by-step explanation: