This GMAT quant practice question is a probability data sufficiency question. Concept tested: Properties of negative numbers. Product of two integers, computing probability. A GMAT medium level data sufficiency (data insights) sample question.
Chapters:
00:06 - Question
01:10 - Decoding question stem
02:00 - Evaluating statement 1 alone
06:26 - Evaluating statement 2 alone
Question:
Set A contains distinct integers: A = {2, 4, 6, -8, x, y}. When two numbers from this set are selected and multiplied, what is the probability that the product is less than zero?
Statement 1: x × y is not equal to zero.
Statement 2: |x| = |y|
A. Statement 1 ALONE is sufficient; statement 2 is not sufficient.
B. Statement 2 ALONE is sufficient; statement 1 is not sufficient.
C. Statements 1 & 2 TOGETHER are sufficient but are not sufficient independently.
D. Each statement is INDEPENDENTLY sufficient.
E. Statements together are NOT sufficient. Additional data is required.
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Негізгі бет Probability 10 | GMAT Data Sufficiency | Properties of Negative Numbers
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