Answer:
The variance of the total number of points she scores from these shots is 4.8951.
Step-by-step explanation:
For each 3-point shot that she takes, there are only two possible outcomes. Either she makes it, or she misses. This means that we can solve this problem using concepts of the binomial probability distribution.
Binomial probability distribution:
Probability of exactly x sucesses on n repeared trials, with p probability.
Has the variance given by:
In this problem, we have that:
She takes 7 shots, each one with a 37% probability of success. So . So:
This is the Variance of the number of shots that she makes. Each shot is worth three points. So the variance of the total number of points she scores from these shots is 3*1.6317 = 4.8951.
Is this the way the question is laid out? is there an equal sign anywhere
Stevie can swim 4 laps each minute.
16/4=4
Don't you mean "coords," or (better yet) "coordinates?"
Look at line DG as an example. It's vertical. If you rotate the whole figure clockwise, then line DG becomes the horiz. line D'G.' G' would have the coordinates (-1,-1), and D' (5,-1). Plot these points G' and D' and see whether or not you agree.