50 points pls
use the probability distribution graph to answer the question.

p(x≥a)=0.5

what is the value of a?

The plot of the PDF shows the distribution is symmetric. This means that the mean is the same as the median, and that the 50% of the distribution lies to other side of this mean, i.e.

For this distribution, .

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).