If you roll a fair $6$-sided die, what is the probability of the complement of the event $“$rolling a number less than $5$$”$?

Which measurement level best describes the variable $\text{temperature measured in degrees Celsius}$?

Which of the following values can represent the probability of an event?

If you flip a fair coin, what is the probability of getting heads? Express your answer as a percentage.

Which of the following best defines a binary variable?

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 $[1,2)$?

Given the following probability distribution, determine whether it is a discrete probability distribution: $x$: $1$, $2$, $3$; $P\left(x\right)$: $0.2$, $0.5$, $0.3$.

Suppose the error involved in making a certain measurement is a continuous random variable $x$ with cumulative distribution function (cdf) $F\left(x\right)=\{\begin{array}{cc}0& ,x<0\\ \frac{x}{2}& ,0\le x<2\\ 1& ,x\ge 2\end{array}$. What is the probability that the error is less than 1.5?

Given the exponential probability density function $f\left(x\right)=\lambda e^{-\lambda x}$ for $x\ge 0$ and $\lambda >0$, what is the expected value (mean) of $X$?