4. Probability

Given that $x$ has a Poisson distribution with parameter $\lambda$, which of the following is the correct expression for the probability that $x$ equals $k$?

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

Which of the following steps is necessary in preparation for calculating a Spearman correlation coefficient between two variables?

If $60.9$ is what percent of $64$? Round your answer to the nearest tenth.

Which of the following best describes the difference between $\mathrm{relative} \mathrm{frequency}$ and $\mathrm{cumulative} \mathrm{frequency}$ in probability?

Which of the following is an example of random selection?

In probability theory, what is the main difference between an $\mathrm{outcome}$ and an $\mathrm{event}$?

Which of the following sample spaces would satisfy the definition of a continuous random variable?

Complete each statement: An event with a probability of $0$ is ____, and an event with a probability of $1$ is ____.

Suppose the cumulative distribution function (CDF) of the random variable $x$ is given by $F\left(x\right)=\{\begin{array}{cc}0& ,x<0\\ \frac{x}{2}& ,0\le x<2\\ 1& ,x\ge 2\end{array}$. What is the probability that $x$ falls in the interval $[1,2)$?

In a survey of all students at a university, it was found that the average GPA is $3.2$. Is the underlined number $3.2$ a statistic or a parameter?