Scores on a test are distributed normally with a mean of 1500 and a variance of 4900. what is the cutoff score for the lowest 25% of scores?

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x