Digital SAT Math Practice Question #2503
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Desmos / Statistical Reason: Filter conditional probability denominators carefully — 'out of what total' is always the key.
Sum of five numbers $= 5 \times 18 = 90$. Sum of four $= 12 + 15 + 20 + 22 = 69$. Fifth number $= 90 - 69 = 21$....
Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...
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