Probability Basics and Rules
30 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest, every one with a full worked solution. Work through all 30 with your weekly-lesson access code.
Sample: the first question, solved
A bag has 10 marbles, 3 of which are red. Find the probability of drawing a red marble.
📘 Worked solution
✓3/10.
And one from the hard end
"A bag has 5 red, 3 blue, 2 green marbles. Find P(Red or Blue), then P(Not Green) using the complement rule."
Solution shown after you try it in practice mode.
Work through all 30, easiest to hardest
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