Psychologists have found that an equal number of students rate the following qualities as most important in a potential
romantic interest attractive, successful, trustworthy, loyal, funny, and kind. What is the probability that the next student
tested rates attractive or successful as the most important quality?
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Factor the polynomial expression x6 – x3 – 20

What percent of $1.00 are a nickel and a dime?

The weekly amount spent by a company for travel has an approximately normal distribution with mean = $550 and standard deviation = $40. a) what is the probability that the actual weekly expense will exceed $570 for more than 20 weeks during the next year? (note: one year = 52 weeks) b) what is the probability that actual weekly expenses exceed $580 for 10 or more, but 16 or fewer weeks during the next year?