Probability and conditional probability

Medium Math · Problem-Solving and Data Analysis · Probability and conditional probability · SPR

The table summarizes the distribution of color and shape for $100$ tiles of equal area.

	Red	Blue	Yellow	Total
Square	$10$	$20$	$25$	$55$
Pentagon	$20$	$10$	$15$	$45$
Total	$30$	$30$	$40$	$100$

If one of these tiles is selected at random, what is the probability of selecting a red tile? (Express your answer as a decimal or fraction, not as a percent.)

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id cb_question_bank:fefedf83-2871-4ede-9c2d-531f6135dfa9 · question e9ed719f · JSON