Show that the points of inflection of the graph of the p.d.f. of X occur at x = mu +/- sigma.
Do I have to find the first derivative or something to check for points of inflection??
You need to find the values of x where the first derivative has a turning point. To do this, you will need to find when the second derivative is equal to zero.
__________________ There are two things you should never try to prove: the impossible and the obvious.
The greater danger for most of us lies not in setting our aim too high and falling short; but in setting our aim too low and achieving our mark. (Michelangelo Buonarroti)
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Math Help Forum is a community of maths forums with an emphasis on maths help in all levels of mathematics. Register to post your math questions or just hang out and try some of our math games or visit the arcade.
Points of inflection on the graph of this distribution? 
Linear Mode
