Suppose that the insurance companies did do a survey. they randomly surveyed 400 drivers and found that 320 claimed they always buckle up. we are interested in the population proportion of drivers who claim they always buckle up
a. construct a 95% confidence interval for the population proportion who claim they always buckle up
b. what is the lower bound? (round to 4 decimal places )
c. what is the upper bound? (round to 4 decimal places)

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

The cross-sectional areas of a right triangular prism and a right cylinder are congruent. the right triangular prism has a height of 6 units, and the right cylinder has a height of 6 units. which conclusion can be made from the given information? the volume of the triangular prism is half the volume of the cylinder. the volume of the triangular prism is twice the volume of the cylinder. the volume of the triangular prism is equal to the volume of the cylinder. the volume of the triangular prism is not equal to the volume of the cylinder.