The results of a test are normally distributed. A particular student scores 57, which is 1.4 standard deviations below the mean. If the mean is 68, then what is the standard deviation? Hint: Use the formula for z-score. Round your answers to three decimals.

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

Use the four functions below for this question. compare and contrast these four functions using complete sentences focus on the slope and y- intercept first, and then on any additional properties of each function

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box