If a salary of $120,000 corresponds to  P81, interpret this value in a sentence.

For the following Frequency Polygon, answer the questions below   a.  How many real classes does this frequency polygon have? [answer1] b. What is the class width? [answer2] c. Which class midpoint has the maximum frequency of exercises? [answer3] d. Approximately how many people exercised 14 hours? [answer4]

Using the information from the previous problem, which animal is relatively taller? Briefly explain and justify your answer.

Identify if the following variables are Qualitative or Quantitative 1. Someone’s Marital Status (Single, Married, Divorced, etc…) [answer1] 2. The number of times a person has been married? [answer2] 3. The high temperature today. [answer3] 4. The rank of horses in a horse race (Win 1st, Place 2nd, or Show 3rd). [answer4]

[answer1] statistics consists of organizing and summarizing information collected, while [answer2] statistics uses methods that generalizes results obtained from a sample to the population and measure the reliability of the results.

Using the information from the previous problem, which animal is relatively shorter? Briefly explain and justify your answer.

https://player.vimeo.com/video/1221595854?h=56c6be4405

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Are the following variables Qualitative or Quantitative?  a. The number of thermometers outside a research institute. [answer1] b.  Eye colors of students in the class. [answer2] c. The ages of presidents the year they were elected.  [answer3] d. .  T-Shirt sizes of S, M, L. [answer4]  

Determine whether the study depicts an observational study or an  a) The personnel director at a large company would like to determine whether the company cafeteria is widely used by She calls each employee and asks them whether they usually bring their own lunch, eat at the company cafeteria, or go out for lunch.  [answer1]   b) A medical researcher obtains a sample of adults suffering from diabetes. She randomly assigns 30 people to a treatment group and 30 to a placebo group. The treatment group receives a medication over a period of three months and the placebo group receives a placebo over the same time frame. At the end of three months the patientsʹ symptoms are evaluated. [answer2]