Astore gives away gift bags during a sale. of these gift bags, 30% are green, 20% are yellow, and 50% are blue. the average number of items in each green bag is 10. the average number of items in each yellow bag is 5. the average number of items in each blue bag is 8. what is the average number of items in all the gift bags?

Identify the polynomial. a2b - cd3 a.monomial b.binomial c.trinomial d.four-term polynomial e.five-term polynomial

Math i have no idea how to do a and b

Arandomized controlled trial is designed to evaluate the effect of metoprolol in patients with heart failure. while preparing for statistical analysis, the researcher reviews some common types of statistical errors. which of the following statements is true regarding a type i error in a clinical study? a. the study is not significantly powered to detect a true difference between study groups. bthe null hypothesis is true but is rejected in error. c. the null hypothesis is false but is accepted in error. d. type i error is also known as beta and is usually 0.1 or 0.2. e. type i error depends on the study's confidence interval.