Answered: Which of the following variables can be…

Which of the following variables can be classified as categorical? Exam letter grade Time spent on exam Class population Phone number I only I and IV only II and III only or II, III, and IV

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Residence in the city are charge for water usage every three months the water bill is computed from a common fee along with the amount of water the customer uses the last water bill for 40 residence from two different neighborhoods are shown in the histogram below. which of the following is a true statement comparing the water bills of the two neighborhoods? more homes on front Street had water bills above 225 then on Pine Road more homes on Pine Road had water bills under 150 then on front Street more homes on Pine Road had water bill is above 200 then on front Street The same number of homes on both streets had water bills between 175 and 200
One True Love by Educational Level A study is conducted in which people were asked whether they agreed or disagreed with the statement that there is only one true love for each person. The table below gives a two-way table showing the answers to this question as well as the education level of the respondents. A person's education is categorized as HS (high school degree or less), Some (some college), or College (college graduate or higher). Is the level of a person's education related to how the person feels about one true love? If there is a significant association between these two variables, describe how they are related. chi-square statistic = i p-value = HS Some College Total Agree Disagree 556 469 Don't know Total 364 166 15 29 198 791 27 935 664 1016 728 1816 71 2615 Round your answer for the chi-square statistic to one decimal place, and your answer for the p-value to three decimal places. Table 1 Educational level and belief in One True Love
What variable will you change in this experiment? This is also called the Independent variable. How will you change it? What variable will you measure in this experiment to determine the effect of the variable you changed? This is also called the Dependent variable. How will you measure it? What variables will you keep the same in this experiment? Check off the items in this list that you would use for this experiment. You may add any items you feel you would need. O Skim milk (which contains lactose) O Lactase drops O Graduated cylinder O Eye dropper O Ice cubes O pH paper O Hot plate O Mixing spoon O Thermometer O Vinegar (acidic) O Test tubes O Glucose test strips O Baking soda (basic) O Other items you feel you would need to use for this experiment.
O O O Less than 8 8. A sample of 400 Goshen households is selected and several variables are recorded. Which of the following statements is correct? * O Total household Income is a ratio level data. Socioeconomic status (recorded as "low income", "middle income", or "high income" is nominal level data. O The number of people living in a household is a continuous variable. O The primary language spoke in the household is ordinal level data.
QUESTION1 What does the variable "student" represent? Yes vs. No Full time vs. Part time Student vs. Employee There is not a variable named student. QUESTION 2 How is "cigarette" being quantified? packs of cigarettes smoked each day # of cigarettes smoked each day packs of cigarettes smoked each month # of cigarettes smoked each week QUESTION 3 What does "upset" represent? (write this word for word from the SPSS file)
AP Statistics Unit 4 Free Response Show all your work. Indicate clearly the methods you use, because you will be scored on the correctness of your methods as well as on the accuracy and completeness of your results and explanations. Name 1. The table summarizes the relationship between two categorical variables, grade level and the student's answer to the question, "Do you eat regularly in the school cafeteria?" Grade Eat in café? 9th 130 18 148 Yes No Total 11th 122 88 210 Pd 10th 12th 175 68 34 170 209 238 a. If you choose a student at random, what is the probability they eat regularly in the cafeteria? Total 495 310 805 b. If you choose a student at random, what is the probability they eat regularly in the cafeteria, given that they are in 10th grade? c. If you choose a student at random, are the events "10th grade" and "eats regularly in the cafeteria" independent? Explain how you know. b. Find the probability that the team wins the debate. 2. On Mr. Casper's debate team at…
Identify the means and the extremes.
What do these histograms look like?