4. Probability

Which of the following correctly represents the sample space $S$ for a single toss of a fair coin?

Why do pollsters most often rely on random sampling when conducting surveys?

If a single letter is chosen at random from the word 'probability', what is the probability that the letter selected is $i$?

Which of the following correctly states the two requirements for a discrete probability distribution?

Which of the following is a required condition for a discrete probability function?

Which of the following correctly states the two requirements for a discrete probability distribution?

In the context of probability and statistics, what does it mean if data are reproducible but not accurate?

Under which condition is the formula $p(a\vee b)=p\left(a\right)+p\left(b\right)$ valid in probability theory?

In the context of basic probability and scientific polling, what is typically the first step in conducting a scientific poll?

Which of the following is an example of a secondary data source in probability studies?

Which of the following is an assumption when using a nonparametric test?

Which of the following numbers could not be used to represent the probability of an event?

Which of the following is a property of a probability density function ($pdf$)?

Suppose the hourly wage of a detasseler is normally distributed with a mean of $15$ dollars and a standard deviation of $2$ dollars. What is the approximate probability that a randomly selected detasseler makes between $13$ and $17$ dollars an hour?

Which of the following is a requirement for an independent random sample?