Answer:
(1, -2)
Step-by-step explanation:
I hope that helps :/
Answer:
the sun may rise or will not rise , so there are 2 chances
Step-by-step explanation:
so the probability is 1/2=0.5
To compare the two classes, the Coefficient of Variation (COV) can be used.
The formula for COV is this:
C = s / x
where s is the standard deviation and x is the mean
For the first class:
C1 = 10.2 / 75.5
C1 = 0.1351 (13.51%)
For the second class:
C2 = 22.5 / 75.5
C2 = 0.2980 (29.80%)
The COV is a test of homogeneity. Looking at the values, the first class has more students having a grade closer to the average than the second class.
Answer:

Step-by-step explanation:


Answer:
72
Step-by-step explanation: