X=100 because 20 X 5 is 100
Answer:
56.5
Step-by-step explanation:
Answer:
Pencils to erasers: 18:12 18/12 18 to 12
Pens to markers: 9:6 9/6 9 to 6
Step-by-step explanation:
Hope this helps!
Answer:
Standard deviation (S) = square root of the variance
Standard deviation is the measure of spread most commonly used in statistical practice when the mean is used to calculate central tendency. Thus, it measures spread around the mean
Step-by-step explanation:
