What is perpendicular?
What is parallel?
And what are the differences between the two?

What does the relationship between the mean and median reveal about the shape of the data

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

Use pascal's triangle to find the missing values. x4 - 4xb + 6x2 - ax + 1