The following data give the number of hours 5 students spent studying and their corresponding grades on their midterm exams. Hours Studying 1 2 2 2 4
Midterm Grades 64 82 88 96 96

Step 4 of 5 : Construct the 90% confidence interval for the slope. Round your answers to three decimal places.

Shiny white dental insurance costs $258 per year. approximately one-third of insured people need a filling, which averages $110 each. 80% of insured people get a preventive check-up each year, and the average cost of this visit is $95. if you consider shiny white’s income and expenses, what is the expected value of each insured customer?

True or false look at the picture pls : /

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling