Invent a sample of size 5 for which the sample mean is 20 and the sample median is 15.

To answer this specific problem:

A sample size of 5 for which the sample mean is 20 and the sample median is 15 would be 9, 12, 15, 25, and 39. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

dilation scale factor 2: starting with δabc, draw the dilation image of the triangle with a center at the origin and a scale factor of two. notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). dilation with scale factor 2, multiply by 2.

the answer to your question is b.