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How to find independent and defendant variables
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- Cholesterol Cholesterol in human blood is necessary, but too much can lead to health problems. There are three main types of cholesterol: HDL (high-density lipoproteins), LDL (low-density lipoproteins), and VLDL (very low-density lipoproteins). HDL is considered “good” cholesterol; LDL and VLDL are considered “bad” cholesterol. A standard fasting cholesterol blood test measures total cholesterol, HDL cholesterol, and triglycerides. These numbers are used to estimate LDL and VLDL, which are difficult to measure directly. Your doctor recommends that your combined LDL/VLDL cholesterol level be less than 130 milligrams per deciliter, your HDL cholesterol level be at least 60 milligrams per deciliter, and your total cholesterol level be no more than 200 milligrams per deciliter. (a) Write a system of linear inequalities for the recommended cholesterol levels. Let x represent the HDL cholesterol level, and let y represent the combined LDL VLDL cholesterol level. (b) Graph the system of inequalities from part (a). Label any vertices of the solution region. (c) Is the following set of cholesterol levels within the recommendations? Explain. LDL/VLDL: 120 milligrams per deciliter HDL: 90 milligrams per deciliter Total: 210 milligrams per deciliter (d) Give an example of cholesterol levels in which the LDL/VLDL cholesterol level is too high but the HDL cholesterol level is acceptable. (e) Another recommendation is that the ratio of total cholesterol to HDL cholesterol be less than 4 (that is, less than 4 to 1). Identify a point in the solution region from part (b) that meets this recommendation, and explain why it meets the recommendation.What are Independent variables?Can I get some help with identifying the variables and individuals?
- What is the dependent variable, constant, independent variable, and control group? Do bigger dogs will have more puppies than smaller dogs?What is the difference between a dependent variable and an independent variable in a research study? Provide an example of each variable in a psychological research study.Define the term Independent Variable?
- can a cause and effect relationship be determined?What are the variables ? Which ones are quantitative and categorical ?The top 25 companies (by market capitalization) operating in the Washington, DC, areaalong with the year they were founded and the number of employees are given below.Make a stem-and-leaf display of each of these variables and write a short description ofyour findings.
- A popular fast food chain wants to open an outlet in a particular district. The research department collected some data from the district. Among the variables collected were i. the number of persons who buy gasoline during a particular period ii. the number of business places in the district iii. the types of businesses in the district iv. the area of land used for each house in the neighborhood v the days of late closing of the businesses vi the number of students from the two schools in the area who wait for the bus near the proposed site of the outlet. SELECT ALL THE QUALITATIVE VARIABLESWhat is the difference between dependent and independent variable?create a scenario that includes an independent and dependent variable as well as a confound variable. What is the independent variable? How many levels are there for the independent variable? What is the dependent variable? What is the confound? How could this confound be fixed?