CCSS HSS-MD.A.1 Worksheets
Grade 12 · Using Probability to Make Decisions
Define a random variable for a quantity of interest by assigning a numerical value to each event in a sample space, and graph the corresponding probability distribution using the same displays as for data.
Below are free printable worksheets that support HSS-MD.A.1. Print them as PDFs, or generate a fresh one. Every math answer key is computed in code, so it is never wrong.
Teaching guide
What students learn
Define a random variable for a quantity of interest by assigning a numerical value to each event in a sample space, and graph the corresponding probability distribution using the same displays as for data.
Worked example
A discrete random variable X has this probability distribution: P(X=0)=0.05, P(X=3)=0.45, P(X=4)=0.2, P(X=5)=0.15, P(X=8)=?. Find the missing probability.
Answer: 0.15
Why: 1 - (0.05 + 0.45 + 0.2 + 0.15) = 1 - 0.85 = 0.15
Generated and checked in code, so it is correct.