You are watching: A graphical presentation of the relationship between two quantitative variables is
C. Data-ink is the ink offered in a table or chart the is necessary to convey the meaning of the data come the audience
Tables should be provided whena. The reader need not refer to details numerical values.b. The reader need not make an accurate comparisons in between different values and also not just relativecomparisons.c. The values being presented have various units or an extremely different magnitudes.d. The reader need not differentiate the columns and rows.
C. The tables need to be used when the reader demands to express to certain numerical values, once the reader requirements to make an exact comparisons in between different values and also not just relative comparisons,and as soon as the values being shown have different units or very different magnitudes.
A useful type of table for describing data of two variables is aa. Data table.b. Bubble chart.c. Crosstabulation.d. Scatter chart.
A _____ is a graphical presentation that the relationship in between two quantitative variables.a. Histogramb. Bar chartc. Pie chartd. Scatter chart
D. A scatter chart is a graphical presentation of the relationship between two quantitative variables.
A _____ is a line that provides an approximation of the relationship between the variables.a. Heat chartb. Sparklinec. Trendlined. Gridline
C. To achieve an almost right relationship between the variables, we add a trendline on a scatterchart.
If the scatter chart suggests a positive linear relationship in between two variables, then their correlationcoefficient isa. Equal to -1.b. Greater than 1.c. Between 0 and also +1.d. Between -1 and also 0.
C. If the scatter chart suggests a positive direct relationship in between two variables, then your covariance is positive and hence, your correlation coefficient is between 0 and also +1.
A line chart displaying the data values built up over a period of time is termed together aa. Boxplot.b. Frequency graph.c. Dot plotd. Time series plot.
D. Heat charts are very useful because that time collection data built up over a period of time (minutes, hours, days, years, etc.). Such line charts room often referred to as as time series plots.
In order come visualize 3 variables in two-dimensional graph, we use aa. 2-D chart.b. 3-D chart.c. Balloon chart.d. Obelisk chart.
C. A bubble graph is a graphical means of visualizing three variables in a two-dimensional graph and is therefore, occasionally a preferred alternate to a 3-D graph.
A two-dimensional graph representing the data using various shades of color to suggest magnitude iscalled a ______.a. Warm mapb. Balloon chartc. Obelisk chartd. Pie chart
A. A heat map is a two-dimensional graphical representation of data that uses different shades of shade to suggest magnitude. Warmth maps rely strongly ~ above the use of color to convey details over various areas, across time, or both.
Consider the clustered bar chart of the dashboard emerged to monitor the performance of a contact center:This chart permits the that manager toa. Determine a particular kind of problem by the contact volume.b. Identify a particular form of problem by location.c. Determine different varieties of difficulties (Email, Internet, or Software) in the speak to center.d. Determine the frequency of each difficulty in the speak to center.
B. The clustered bar chart reflects the speak to volume in the call center by form of problem (Email,Internet, or Software) because that each of 3 cities in Texas. This chart allows the the manager come quicklyidentify if over there is a particular form of trouble by location.
A regression analysis involving one live independence variable and also one dependent change is described as a_____.a. Aspect analysisb. Time collection analysisc. Basic regressiond. Data mining
C. A regression evaluation involving one elevation variable and also one dependent variable is described as a an easy regression.
A direct regression analysis for which any type of one unit change in the independent variable is assumed to:a. Have actually the same readjust in the dependent variable.b. Have no readjust in the dependency variable.c. Have an inverse result on the dependency variabled. Have actually a nullifying impact on the dependence variable.
A. A regression analysis for which any type of one unit readjust in the independent variable is presume to result in the same readjust in the dependent change is described as a straight regression.
In the graph that the basic linear regression equation, the parameter β1 is the _____ of the regression line.a. Slopeb. X-interceptc. Y-interceptd. End-point
A. In the graph of the basic linear regression equation, the parameter β1 is the steep of the regression line.
When the mean value the the dependent change is live independence of sports in the independent variable, the slope of the regression line is _____.a. Positiveb. Zeroc. Negatived. Infinite
When the mean value of the dependent variable is independent of the sport in the elevation variable, the slope of the regression line is zero.
The procedure of making use of sample data to discover the estimated regression equation is better known as _____.a. Allude estimationb. Expression estimationc. The least squares methodd. Extrapolation
C. The the very least squares method is a procedure for utilizing sample data to discover the approximated regressionequation.
Prediction of the worth of the dependency variable outside the experimental region is called _____.a. Interpolationb. Forecastingc. Averagingd. Extrapolation
D. Forecast of the value of the dependent variable exterior the experimental region is dubbed extrapolation.
What would be the worth of the amount of squares because of regression (SSR) if the full sum of squares (SST)is 25.32 and also the sum of squares because of error (SSE) is 6.89?a. 31.89b. 19.32c. 18.43d. 15.32
The coefficient that determination:a. Bring away values between -1 come +1.b. Is same to zero because that a perfect fit.c. Is equal to one because that the poorest fit.d. Is offered to evaluate the goodness of fit.
D. The coefficient of determination (R-squared) is used to advice the kindness of fit because that the estimated regression equation
What would be the coefficient of determination if the full sum the squares (SST) is 23.29 and the amount of squares due to regression (SSR) is 10.03?a. 2.32b. 0.43c. 13.26d. 0.89
Which the the following inferences have the right to be attracted from the scatter chart given below?a. The residuals have actually a differing variance.b. The model captures the relationship in between the variables accurately.c. The regression model complies with the F probability distribution.d. The residual circulation is repeatedly scattered around zero.
A. The variation in the residuals e boosts as the worth of the independent change x increases,suggesting the the residuals carry out not have actually a constant variance.
The following scatter chart would assist conclude that:a. The residuals have actually a consistent variance.b. The model stops working to record the relationship in between the variables accurately.c. The version underpredicts the value of the dependent variable for intermediate values of theindependent variable.d. The residual is usually distributed.
B. The residuals are hopeful for little and large values that the independent change x however are an unfavorable for the remaining values the the elevation variable. This pattern argues that the straight relationships in the regression design underpredicts the value of dependent change for tiny and largevalues the the elevation variable and overpredicts the worth of the dependency variable because that intermediate values of the elevation variable. In this case, the regression design does no adequately capture the relationship between the independent variable x and the dependent change y.
Which of the complying with inferences can be drawn from the scatter chart offered below?a. The residuals have a consistent variance.b. The model catches the relationship in between the variables accurately.c. The model underpredicts the worth of the dependency variable for intermediate values of theindependent variable.d. The residual distribution is not typically distributed.
D. The residuals in the given figure are no symmetrically distributed about zero; numerous of the an unfavorable residuals are reasonably close to zero, if the relatively few positive residuals often tend to be much from zero. This skewness suggests that the residuals room not normally distributed.
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_____ is supplied to check the theory that the values of the regression parameters β1, β2, . . . , βq space all zero.a. An F testb. A t testc. The least squares methodd. Extrapolation
A. One F check is provided to test the hypothesis that the values of the regression parameters β1, β2, . . . , βq space all zero.