a math class has 12 female students. Out of the total 20 students in the class, what is the probability of randomly selecting a male student from the class.

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?

Use sigma notation to represent the following series for 9 terms.