Homework Answers
In the first graph ( left hand side), the value of y decreases (vertical axis) as the value of x (horizontal) axis increases, hence the correlation coefficient comes out to be negative.
From option it can be -0.5
From 2nd graph on right hand side, the correlation is positive as the values increases simultaneously, but the correction is not that strong as the proportion of changes in x and y are not equal.
So it can be around 0.5
Answer : (d) -0.5, 0.5
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D Question 10 2 pts Which of the following shows correlations for two scatter plots? (in order) d. 0.5,-0.5 a.-0.5, 1 c. 0.5, 1 b.-0.5,0.5 D Question 10 2 pts Which of the following shows correl...
Based on the three scatter plots, which show correlations between two variables X and Y, which...
Based on the three scatter plots, which show correlations
between two variables X and Y, which one of the following
statements is correct?
The relative magnitude of the three correlations is a < b
< c.
The relative magnitude of the three correlations is a = b <
c..
Scatter plot a shows a strong positive correlation
Scatter plot c shows a weak positive correlation.
Question 1 2 pts Which one of the following plots shows an object at rest? Time...
Question 1 2 pts Which one of the following plots shows an object at rest? Time (sec) Time (sec) Time (sec) Time (sec) Question 2 2 pts Which one of the Velocity vs. Time plots show an object moving at constant acceleration without changing direction? Time (sec) Time (sec) Time (sec) Time (sec) Question 3 2 pts Which one of the Velocity vs. Time plots show an object moving with low, but constant, acceleration? a» Time (sec) Time (sec) Time...
Question 27 2 pts The following image shows four genes. A, B, C and D. Which...
Question 27 2 pts The following image shows four genes. A, B, C and D. Which of these genes will be affected by an enhancer? А enhancer insulator promoter promoter enhancer insulator promoter enhancer insulator promoter enhancer OB, C and D Band D O A, B, C and D A and B
match each of the following of the scatter plots A-D to its correlation coeficient r=0.719 [Choose]...
match each of the following of the scatter plots A-D to its
correlation coeficient
r=0.719 [Choose] B А D с r=-0.064 r = 0.889 [Choose ] r = -0.701 [Choose] . Question 5 Identify which of the following samples is a possible bootstrap sample from the or that consists of the values: 5, 7, 11, 15, 18 Match each of the following scatterplots (A-D) to its correlation coefficient (r). A B D r=0.719 [Choose ] r = -0.064 [Choose ]
. Necessary assumptions for regression two scatter plots and the corresponding regression lines in the following...
. Necessary assumptions for regression two scatter plots and the corresponding regression lines in the following dilagrams. Identily which graph is more homoscedastic. Graph I Graph II Y SCORES Y SCORES 10 10 2 0 2&1 X SCORES 10 X SCORES You wish to use a least squares regression line to predict a new response value Y for a given explanatory value X. Which of the assumptions are necessary in order to expect some accuracy in the prediction? Check all...
Question 7 10 pts 7) The two box plots below summarize the weights of two populations...
Question 7 10 pts 7) The two box plots below summarize the weights of two populations of dogs, measured in pounds. Which of the following values is the largest? Weights of Dogs Population A Population B weight in pounds The IQR of Population A The median of the Population B The IQR of Population B The median of Population A The range of Population A
The Scatter Diagram... A shows the type of correlation that may exist between two variables. B...
The Scatter Diagram...
A
shows the type of correlation that may exist between two
variables.
B
shows the relationship between the mean and standard deviation
of the data.
C
displays the amount of variablility in multiple samples.
D
requires the data be plotted in time order sequence.
D Question 1 0.5 pts Which of the following molecules would exhibit dipole-dipole interactions between molecules?...
D Question 1 0.5 pts Which of the following molecules would exhibit dipole-dipole interactions between molecules? O co2 O Cl2 O BCI, O ASH3 XeF4 Question 1 0.5 pts Formation of solutions where the process is endothermic can be spontaneous provided that the solvent is a gas and the solute is a liquid. the solvent is water and the solute is a gas. they are accompanied by another process that is exothermic. O they are accompanied by an increase in...
Question 2 0.5 pts The measurement of four internal angles at A, B, C and D...
Question 2 0.5 pts The measurement of four internal angles at A, B, C and D and the bearing from A to B (line AB) are provided in the two tables below. Point Internal angles 56° 58' 54" 102° 45' 14" 44° 55' 12" 155° 20' 48" From Bearing 35° 25' 26" What is the adjusted bearing of line BC? Provide your answer with format (ddd.mmss) in the answer box.
Help please!! Need ASAP!! D Question 10 0.5 pts Which of the following CANNOT be used...
Help please!! Need ASAP!!
D Question 10 0.5 pts Which of the following CANNOT be used as an energy source by the brain? glucose O ketone bodies O fatty acids O none of the above
Based on the three scatter plots, which show correlations
between two variables X and Y, which one of the following
statements is correct?
The relative magnitude of the three correlations is a < b
< c.
The relative magnitude of the three correlations is a = b <
c..
Scatter plot a shows a strong positive correlation
Scatter plot c shows a weak positive correlation.
Question 1 2 pts Which one of the following plots shows an object at rest? Time (sec) Time (sec) Time (sec) Time (sec) Question 2 2 pts Which one of the Velocity vs. Time plots show an object moving at constant acceleration without changing direction? Time (sec) Time (sec) Time (sec) Time (sec) Question 3 2 pts Which one of the Velocity vs. Time plots show an object moving with low, but constant, acceleration? a» Time (sec) Time (sec) Time...
Question 27 2 pts The following image shows four genes. A, B, C and D. Which of these genes will be affected by an enhancer? А enhancer insulator promoter promoter enhancer insulator promoter enhancer insulator promoter enhancer OB, C and D Band D O A, B, C and D A and B
match each of the following of the scatter plots A-D to its
correlation coeficient
r=0.719 [Choose] B А D с r=-0.064 r = 0.889 [Choose ] r = -0.701 [Choose] . Question 5 Identify which of the following samples is a possible bootstrap sample from the or that consists of the values: 5, 7, 11, 15, 18 Match each of the following scatterplots (A-D) to its correlation coefficient (r). A B D r=0.719 [Choose ] r = -0.064 [Choose ]
. Necessary assumptions for regression two scatter plots and the corresponding regression lines in the following dilagrams. Identily which graph is more homoscedastic. Graph I Graph II Y SCORES Y SCORES 10 10 2 0 2&1 X SCORES 10 X SCORES You wish to use a least squares regression line to predict a new response value Y for a given explanatory value X. Which of the assumptions are necessary in order to expect some accuracy in the prediction? Check all...
Question 7 10 pts 7) The two box plots below summarize the weights of two populations of dogs, measured in pounds. Which of the following values is the largest? Weights of Dogs Population A Population B weight in pounds The IQR of Population A The median of the Population B The IQR of Population B The median of Population A The range of Population A
The Scatter Diagram...
A
shows the type of correlation that may exist between two
variables.
B
shows the relationship between the mean and standard deviation
of the data.
C
displays the amount of variablility in multiple samples.
D
requires the data be plotted in time order sequence.
D Question 1 0.5 pts Which of the following molecules would exhibit dipole-dipole interactions between molecules? O co2 O Cl2 O BCI, O ASH3 XeF4 Question 1 0.5 pts Formation of solutions where the process is endothermic can be spontaneous provided that the solvent is a gas and the solute is a liquid. the solvent is water and the solute is a gas. they are accompanied by another process that is exothermic. O they are accompanied by an increase in...
Question 2 0.5 pts The measurement of four internal angles at A, B, C and D and the bearing from A to B (line AB) are provided in the two tables below. Point Internal angles 56° 58' 54" 102° 45' 14" 44° 55' 12" 155° 20' 48" From Bearing 35° 25' 26" What is the adjusted bearing of line BC? Provide your answer with format (ddd.mmss) in the answer box.
Help please!! Need ASAP!!
D Question 10 0.5 pts Which of the following CANNOT be used as an energy source by the brain? glucose O ketone bodies O fatty acids O none of the above
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