Answer:
<u>35 coins are "other" coins</u>
Step-by-step explanation:
72% of 125 coins were foreign. That means 28% of the coins are not foreign ("other coins").
28% 0f 125 = 0.28*125 = 35 coins were "other" coins
Let the number that wll be added be x, then
-7/9 + x = 5
x = 5 + 7/9 = 5 7/9 or 52/9
Answer:
A sample standard deviation is a statistic. This means that it is calculated from only some of the individuals in a population. Since the sample standard deviation depends upon the sample, it has greater variability. Thus the standard deviation of the sample is greater than that of the population
