The meaning of event ( χ ≥ 3.0 ) . The value of P ( χ ≥ 3.0 ) .

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Chapter 12.7, Problem 12.18AYK

(a)

To determine

To explain: The meaning of event (χ≥3.0) .

The value of P(χ≥3.0) .

(b)

To determine

To express: The event “the students have grade poorer than B-” in terms of random variable χ .

The probability of event “the students have grade poorer than B-”.

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