<h3>
Answers: Choice B and Choice C</h3>
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Explanation:
The symbol 
or mu represents the population mean, which is a parameter.
The symbol 
or sigma represents the population standard deviation, which is also a parameter. The same goes for the symbol p, without any hat on top, as it is the population proportion.
If something represents a population data item, then it's automatically a parameter. It might help to think both words "population" and "parameter" start with the letter P.
Based on those previous paragraphs, we can rule out choices A, D and E. Those three items are parameters. This leaves <u>choices B and C</u> as our final answers.
or xbar is a sample statistic, and it represents an estimate of the population mean. Similarly, 
or p-hat is the sample proportion and it represents an estimate of the population proportion. These are considered unbiased estimators.
Another example of an unbiased estimator is the variable s which represents the sample standard deviation and it estimates the value of sigma. All of these estimators have one thing in common: they are based on a sample, which in turn tries to predict what the corresponding population value is. In other words, the statistic's job is to estimate the parameter.
Below is a reference table for all of the items mentioned.
Answer: Abstract Algebra, Lie Groups/Algebras, Topology, Complex Analysis and Differential Geometry.
Explanation:
Those are the maths needed
Answer:
The more you use, the more you have
When you drink water (or any liquid).
Explanation:Similar for food: From a caloric standpoint, a McSupersized extra value meal should provide you with plenty of fuel to use. But how do you feel after you eat one of those? Unless you’re starving, less is more when it comes to food.Same for sleeping: Logging in 12-hour sessions seems like it should ready you for the day, but usually it leaves you dragging. Unless you’re sleep deprived, it’s worth seeing what happens when you sleep just a little less.Healthy people drink a lot of water, as well they should. But consider when you’re drinking that water: If you’re drinking it with your meal, you could be impairing your digestion.Not only does water dilute the gastric juices required to digest food, it also exits the stomach after just a few minutes, taking those juices with it and making digestion difficult. And since digestion accounts for 5 to 15 percent of your energy expenditure, that’s something you should care about.
Answer:
The probability of being a male and a satisfied employee is 27%
Explanation:
The probability of being a male P(m) = 60% = 60/100 = 0.6
The probability of being a satisfied employee P(s) = 45% = 45/100 = 0.45
Mathematically, the probability of being a male and satisfied = Probability of being a male * Probability of being a satisfied employee = P(m) * P(s) = 0.6 * 0.45 = 0.27
or simply 27/100 which is same as 27%
