The answer is 12 because if you roll it twice the possibility is 12
#1 is three feet
#2 is 400 feet and #4 a is 2 cm sq. And b is 2.5 cm sq.
Answer:
third one is not true means wrong
Answer:
\mu = 14.5\\
\sigma = 5.071\\
k = 1.084
Step-by-step explanation:
given that a statistician uses Chebyshev's Theorem to estimate that at least 15 % of a population lies between the values 9 and 20.
i.e. his findings with respect to probability are
Recall Chebyshev's inequality that
Comparing with the Ii equation which is appropriate here we find that
Next what we find is
Thus from the given information we find that
Answer:
60.5 milligrams per square centimeter First, determine how many half lives have expired by dividing the time by the half-life. So: 55/20 = 2.75 That means that only 2^(-2.75) = 0.148650889 = 14.8650889% of the original substance remains. So just divide the amount remaining by 0.148650889 to get the original amount. 9 / 0.148650889 = 60.5445419 So originally, there was 60.5 milligrams per square centimeter 55 years ago.
