What percentage of data is located between the lower quartile and the median?

The police chief wants to know if the city’s african americans feel that the police are doing a good job. identify the management problem (i. e dependent variable) and identify the independent variable.

X² + 4y² = 36 the major axis runs along: a) y=4x b) x-axis c) y-axis

Lines a and b are perpendicular. if the slope of line a is 3, what is the slope of line b?