Answer:
Step-by-step explanation:
They are all true
Answer: The standard deviation formula may look confusing, but it will make sense after we break it down. ...
Step 1: Find the mean.
Step 2: For each data point, find the square of its distance to the mean.
Step 3: Sum the values from Step 2.
Step 4: Divide by the number of data points.
Step 5: Take the square root.
Step-by-step explanation:
Answer: they are similar because of the same side lengths
Step-by-step explanation:
Answer:
0.4(−0.45)=9.2
2(−0.45)5=9.2
Step-by-step explanation:
=23.45
20% have an A because 1/5 of 100 is 20
