A spinner lands on red with probability 0.3. It is spun 250 times. How many red results would you expect?
Answer and explanation
Correct answer: D. 75
- Step 1: Expected number = probability × number of spins. Step 2. 0.3 × 250 = 75. Answer: 75. Why not the others: 83: This divides 250 by 3 instead of finding 0.3 of it. 7.5: This has the decimal point in the wrong place. 220: This subtracts 30 from 250.
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