Homework Help: math

Posted by Khizar on Tuesday, October 11, 2011 at 12:05am.

Studies have shown a particular television commercial is understood by 25% of first grade students and 80% of fourth grade students. If a television advertising agency randomly selects one first grader and one fourth grader, what is the probability neither child would understand the commercial, assuming the children's reactions are independent?

math - PsyDAG, Tuesday, October 11, 2011 at 10:45am
The probability that both/all events would occur is found by multiplying the probabilities of the individual events.

(1-.25)(1-.80) = ?
math - alicia, Tuesday, October 11, 2011 at 4:22pm
what is the factor of 8 and 16
math - krystina, Tuesday, October 11, 2011 at 4:58pm
8
math - Anonymous, Tuesday, October 11, 2011 at 6:31pm
10
math - lily, Tuesday, October 11, 2011 at 7:18pm
Is 2,340 divisible by 90? How do you know?
math - emily, Tuesday, October 11, 2011 at 7:33pm
5464

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