Answer:
Chicago marathon runners
Step-by-step explanation:
Due to the strict qualifying time, the runners of the Boston marathon are going to very prepared, and quite close in their times. Since they are going to be close, the standard deviation is expected to be small.
Otherwise, in the Chicago marathon, anyone can run. This means that along with the professional runners, who are going to be very prepared, other unprepared runners will compete, and they are going to take a long time to complete the race, adding variation to the finishing times. The standard deviation is the square root of the variance, so since the variance for the Chicago marathon will be higher, the standard deviation also will
Answer:
The correct answer is A. 1.6
Step-by-step explanation:
1.6x50= 80 minutes per song.
1.6x106= 169.6 minutes per song.
If you don't believe me, then grab yourself a calculator, punch the #'s (above^) in, and you'll get the answer.
Hope this helped ya out! (:
Answer:
It does
Step-by-step explanation:
This is because the line has points in which time and distance are connected (Ex. 100 and 2)
Hope this helps! :)
Answer:
4
Step-by-step explanation:
The ratio of green : pink = 32 : 56 = 4 : 7
After 7 pink are given away, then
ratio = ? : 49 = 4 : 7 ← ratio has to be the same
Using proportion
= 
( cross- multiply )
7? = 196 ( divide both sides by 7 )
? = 28
Thus the ratio = 28 : 49 = 4 : 7
Thus 32 - 28 = 4 green should be given
