<span>The three things that help in clearly describing a distribution are 1.The shape of the curve
2. The central tendencies which are mean, median, mode etc and
3. The dispersion of the data (which in maths terms is called standard deviation)</span>
April 1889 was the worst month ever. He was born the twentieth of April in the year of 1889.
A controlled experiment tests only one variable at once at any given time.
Because many believed in communism
Answer:identify herself and establish credibility.
Explanation:
When you are trying to convince people to either believe in your product or business idea or whatever you are trying to sell to them they first need to know who you are based on how you dress up and how you present yourself to them. Mostly though is why they should trust you and that when credibility comes in. Jessica is then stating her credentials by mentioning her experience and what she has done and what she has achieved through that experience which may make people believe in her capabilities knowing there is a record of proven past success.