MATH 1040 - Introduction to Statistics

Practice Question 12.1.1

Here is a probability distribution with one missing value. Determine what that value should be.

Category	A	B	C	D	E	F
Probability	0.08	0.16	0.22	0.34	0.18	x

Answer to Practice Question 9.2.1

All probabilities have to add up to 1. So, \(\begin{align*} 0.08+0.16+0.22+0.34+0.18+x &= 1 \\ 0.98+x &= 1 \\ x &= 1 - 0.98 \\ x &= 0.02 \end{align*}\)

So, \(P(F) = 0.02\).