Thirty randomly selected students took the calculus final. If the sample mean was 89 and the standard deviation was 6. 2, construct a 94 onfidence interval for the mean score of all students\.

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?

What does independent variable and dependent variable mean in math?

Which of the following graphs could represent a quartic function?