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Answer: hope you get some help
Step-by-step explanation:
Answer:
Check below for the answers and explanations.
Step-by-step explanation:
The number of samples or observations used in an experiment is the sample size.
The speaker here claims that he has seen at least a dozen people interviewed on TV who are fed up with celebrities giving political opinions. This means that his sample size is 12.
A sample size of twelve compared to the population of a country is not sufficient to arrive at a valid conclusion.
Response bias is the tendency of respondents to give accurate information to interviews or research questions.
The speaker cannot guarantee that the few people he has seen on the TV gave an accurate information about their feelings towards the attitudes of celebrities to politics.
For these reasons, this argument fails the strength test and is weak.
Answer:
yeet
Step-by-step explanation:
Answer:
The percentage rate of decay per year is of 3.25%.
The function showing the mass of the sample remaining after t is 
Step-by-step explanation:
Equation for decay of substance:
The equation that models the amount of a decaying substance after t years is given by:
In which A(0) is the initial amount and r is the decay rate, as a decimal.
Every 21 years, its mass decreases by half.
This means that 
. We use this to find r, the percentage rate of decay per year.
![\sqrt[21]{(1-r)^{21}} = \sqrt[21]{0.5}](https://tex.z-dn.net/?f=%5Csqrt%5B21%5D%7B%281-r%29%5E%7B21%7D%7D%20%3D%20%5Csqrt%5B21%5D%7B0.5%7D)
The percentage rate of decay per year is of 3.25%.
Given that the initial mass of a sample of Element X is 80 grams.
This means that 
The equation is:
The function showing the mass of the sample remaining after t is
