A computer manufacturer is performing a quality check to make sure the computers' sound cards are working
correctly. The plant manager tested 1,000 computers in Monday and found that 4 had defective sound cards. What is
the experimental probability of a computer having a bad sound card?

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There are 20 children in the cast of a class play and 8 of the children are boys of the boys 4 have a speaking part in the play and of the girls 8 do not have a speaking part in the play if a child from the cast of the place chosen at random what is the probability that the child has a speaking part

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?