Answer:
r=0.5 or 1/2
Step-by-step explanation:
if you multiply 0.5 to each Xs you can find out why r is 0.5
-3 2/5 - 5/6 = -127/30
-2/3 + 6 1/8 = 107/24
Answer:
C) a positive correlation
Step-by-step explanation:
<em>More people ⇒ Longer time</em> is a positive correlation between those variables. However, <em>longer time</em> is not the desired outcome.
Rather, <em>shorter time</em> is the desired outcome. The correlation between <em>more people</em> and <em>shorter time</em> is negative. In order to compute that correlation numerically, one would have to define a function that would give a numerical value for "shorter time" that would model the goodness of outcome as time gets shorter.
Answer: 
Step-by-step explanation:
given data:
T = 58 degree Celsius.
changes in temperature = 3dregres every hour = 4.
solution:
substitute the value for h into the equation.
the set with 
best represents the function range.
