Psychological Tests Narrative
A psychologist tests Grade 7 students on basic word association skills and number pattern recognition skills. Let W be the event a student does well on the word association test. Let N be the event a student does well on the number pattern recognition test. A student is selected at random, and the following probabilities are given: P(W N) = 0.25, P(W ) = 0.15, P( N) = 0.10, and P( ) = 0.50.
-Refer to Psychological Tests Narrative. What is the probability that the randomly selected student does well on at least one of the tests?

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Psychological Tests Narrative
A psychologist tests Grade 7 students on basic word association skills and number pattern recognition skills. Let W be the event a student does well on the word association test. Let N be the event a student does well on the number pattern recognition test. A student is selected at random, and the following probabilities are given: P(W  N) = 0.25, P(W   ) = 0.15, P(   N) = 0.10, and P(    ) = 0.50.
-Refer to Psychological Tests Narrative. What is the probability that the randomly selected student does well on at least one of the tests?

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The Answer of Psychological Tests Narrative
A psychologist tests Grade 7 students on basic word association skills and number pattern recognition skills. Let W be the event a student does well on the word association test. Let N be the event a student does well on the number pattern recognition test. A student is selected at random, and the following probabilities are given: P(W  N) = 0.25, P(W   ) = 0.15, P(   N) = 0.10, and P(    ) = 0.50.
-Refer to Psychological Tests Narrative. What is the probability that the randomly selected student does well on at least one of the tests?

Psychological Tests Narrative A Psychologist Tests Grade 7 Students on Basic Word Association