A student has completed 20 courses in the School of Arts and Sciences. Her grades in the 20 courses are shown below: А ВАВ С C C BB B B AB BB C B C B A 1. Define a best variable name for the given data. (You must use the name in the Excel). 2. What is the type of variable?

Q: Which of the following would be considered an ordinal variable? Treatment, measured as 1=Treatment,…

A: Ordinal variable represents categories which can be ordered like very bad, bad, good, very good,…

Q: Give an example of two independent samples. For example in testing whether a new drug works, the…

A: There are many applications based on the independent samples in a continuous scale. The independent…

Q: Find if A and B are independent, positively associated or negatively associated from the data given…

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Q: Do larger universities tend to have more property crime? University crime statistics are affected by…

A: (a). Draw a scatterplot for the given data: The data represents the values of the variables student…

Q: Which of the following data is not an example of qualitative data. Clour of chocolates after…

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Q: Find the variance of the data

A: a) given data : -3,-2,-1,0,1,2,3,4

Q: Do larger universities tend to have more property crime? University crime statistics are affected by…

A: Given that, A random sample of n = 8 universities in California gave the following information about…

Q: (a) If the pediatrician wants to use height to predict head circumference, determine which variable…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: The number of faculty and the number of students are shown for a random selection of small colleges…

A: Let x be the independent variable and y be the dependent variable. The number of faculty depends on…

Q: Find the first, second, and third quartile of the data set. 9, 7, 3, 16, 12, 14, 17, 5, 3, 11, 8…

A: We have given that,  9,7,3,16,12,14,17,5,3,11,8 Then,  We will find the first, second and third…

Q: What percentage of the data is located in the red sections? -30 -20 20 30 0,0 0,1 0,2 0,3 0,4

A: In a normal distribution 99.7% of the data lies within 3 standard deviations around the mean value.…

Q: The Columbus Zoo conducts a study to determine whether a household's income can be used to predict…

A: We have given a statement problem and we need to find out the response variable.

Q: Do larger universities tend to have more property crime? University crime statistics are affected by…

A: (a) Scatter diagram of the data:The least-squares regression line is the best fitted to the given…

Q: The third quartile of the data: 22,17,10,35,40,18,9 is equal to

A: These are the sample data that have been provided: Observation: XX 1 22 2 17 3 10 4 35…

Q: For a list of quantitative data, what center measures are good to use? A) Mean, median, and mode B)…

A: Mean, median, and mode are the measures of central tendencies. These condense a huge unwieldy set of…

Q: Find the weighted average of a data set where 10 has a weight of 2, 20 has a weight of three and 30…

A: The weighted average is defined as, where wi is the weight, and xi is the frequency corresponding…

Q: The researcher found that the model’s effect size was very large where r = .957. Furthermore, r2 =…

A: The given information is, The value of correlation coefficient is, r = 0.957 The value of…

Q: Determine whether the data set represents a direct variatión, ail y 420 х 2 3 280 4. 210 Direct…

A: Answer: G. Inverse variation.

Q: For the data set, {8, 3, 1, 11, 8, 7}, Q1 3.0 %3D Q3 8.0 ニ IQR = | 8.25

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Q: The position of data in a data set is determined by a. Percentage score O b. Mean of the data O .…

A: Percentile score: Percentiles are positional measures used statistical  data set to indicate  the…

Q: In 2005 and 2012 a WIN-Gallup International asked respondents in 64 countries, "Irrespective of…

A: Given Information: There are 1,002 responses from US residents in 2005. Of those responses 10…

Q: (a) How many variables are in the data set? (b) Which of the variables are categorical? (Select all…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Here is a bivariate data set. y 26.3 69.6 71.6 91.9

A: Given information, x y x^2 y^2 xy 26.3 69.6 691.69 4844.16 1830.48 71.6 91.9 5126.56 8445.61…

Q: A line of best fit was drawn for 15 data points. What is the maximum number of these data points…

A: In linear regression a line of best fit is created. In simple linear regression there will be only…

Q: Do larger universities tend to have more property crime? University crime statistics are affected by…

A:

Q: Determine whether the following variables are qualitative or quantative, and explain why.  The breed…

A: Qualitative variables take on values that are names or labels. The color of a ball (e.g., red,…

Q: the number of faculty and the number of students are shown for a random selection of small colleges.…

A: This example is related to Hypotheses testing  that is significance of correlation coefficient needs…

Q: Which of the subtraction model describes the following question? Maria has 12 balloons and Suzy has…

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Q: What is the variance of the data set 14,23,9,12,21,18,8

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Q: A head of program would like to find out whether there is any relationship between the test results…

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Q: The value of an explanatory variable is 14, while the corresponding value of the response variable…

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Q: If 2% of the components produced by a machine are defective. What is the variance of the number of…

A: According to the question, Number of components, n=300 Probability to be defective p =0.02

Q: Dr. Guidry conducts a study examining the relationship between the number of friends one has and the…

A: A study reported in the Journal of Small Business Management concluded that self- employed…

Q: What is the value of the mode when all values in the data set are different? Select one: O a. zero O…

A: Mode is the value which have highest frequency in the data set   When there is no value which is…

Q: 2. The number of faculty and the number of students are shown for a random selection of small…

A: Given data is :

Q: On a survey, people are classified with the following variable: 0: identify as male 1: identify as…

A: A variable is a characteristic of an object. Their values may occur more than once for a set of…

Q: (b) Use a calculator to verify that Ex = 154.0, Ex? = 3357.62, Ey = 241, Ey? = 9501 and Exy =…

A: Given :∑x=154.0∑x2=3357.62∑y=241∑y2=9501∑xy=5365.4n=8The formula for r is…

Q: What is the variance of the data set 14,23,9,12,18,8

A: Given Data :  XX 14 23 9 12 18 8 Below table will be used to calculate variance :…

Q: A scatterplot of data is shown. y 8 4 2 0 2 4 6 8

A: For the given scatter plot

Q: Which equation is the best fit for the data in the table? * Y 3 2 12 5 27 8 48 11 O…

A:

Q: wnat is the equation Of the medlan-median iine for the dataset in the tabie? y 22 30 8 24 10 40 12…

A: Given x y 2 6 4 22 6 30 8 24 10 40 12 46 14 52 15 72 18 60 20 64

Q: (a) TV stations use ratings to decide which shows to keep or cancel. Therefore, the A. C. Nielsen…

A: Given data Tv stations use ratings to decide which shows to keep or cancel. suppose that you want to…

Q: Two brands of tyres are tested with the following results : Life Brand of tyres in '000 miles X Y…

A: For variable x: Life midpoint f d fd fd2 20-25 22.5 1 -2 -2 4 25-30 27.5 22 -1 -22 22…

Q: Do larger universities tend to have more property crime? University crime statistics are affected by…

A: x y x×y x2 y2 12.3 23 282.9 151.29 529 28.6 72 2059.2 817.96 5184 24.5 39 955.5 600.25 1521…

Q: Given the data set below, 3 4 6 7 8. 6. 7 Y 4 5 17 9. 6 5 2.

A: Hey there! Thanks for posting the question. Your question has more than three sub-parts. However, we…

Q: Erin is married to Glen Mills. Erin earns an income of 500. Glen earns 400. Glen and Erin live with…

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Q: The owner of a small company employs 6 people. As part of their personnel file, she asked each one…

A:

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.