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I believe there is more to the question because there is not enough information for a valid answer.
Answer:
y=18x+16
Step-by-step explanation:
ty
A rational number is any number that can be written as a ratio or a fraction.
So 5/9 is a rational number. So basically that eliminates 2, 3, and 4.
And we are left with 1. as our answer choice which is Rational and real.
<h3>
Answer: Choice D</h3>
To calculate a point estimate, we need to know the sample size.
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Explanation:
Let's go through the answer choices.
- A) False. A sample statistic could equal to the population parameter. It won't always happen, but it might happen sometimes (in rare cases).
- B) False. Point estimates are only defined for populations. They estimate a population parameter. For example, the sample mean xbar is a point estimate of the population mean (mu).
- C) False. In practice, we will hardly know anything about the population. This includes the population size. The goal of statistics is to measure population parameters by using sample statistics as estimation methods.
- D) True. We can easily calculate the sample size because it is relatively much smaller compared to the population. Plus, when selecting the sample, the sample size is often pre-determined to some set number. The sample size will help us determine things like the sample mean and the sample proportion.
