1.5% remains after 43.2 seconds.
2
The Symbol p that denotes sample proportion.
Half-life is 5.27 years; 21 / 5.27 = 3.99, or almos 4 half-lives; (1/2)4 = 1/16.
Statistically speaking, the mean is the most stable from sample to sample. Whereas, the mode is the least stable statistically speaking from sample to sample.
sample statistic
This fraction is 12,5 %.
2
1/32
The fraction that remains is 1/8.
It tells what fraction of a radioactive sample remains after a certain length of time.
An eighth remains.
1/8 of the original amount remains.
It is 1/8 .
One eighth remains.
The answer depends on 3240 WHAT: seconds, days, years?
75
The fraction or ratio of a sample possessing a certain trait is called a Proportion.