What's the answer below? is it complementary, supplementary, or neither.

You use technology ans find a sum of 6.712e-8. write this sum in standard form

Mahnoor randomly selects times to walk into a local restaurant and observe the type of music being played she found that the restaurant was playing country 11 times rock & roll 17 times and blues 8 times use the observed frequencies to create a probability model for the type of music the restaurant is playing the next time mahnoor walks in.

These dots plots show the height (in feet) from a sample of the different types of elephants