Which of the following Python methods return the correlation coefficient? Select all that apply.

Question 1 options:

pearsonr method from scipy.stats submodule

corr method from pandas dataframe

Question 2

The linregress() method in scipy module is used to fit a simple linear regression model using "Reaction" (reaction time) as the response variable and "Drinks" as the predictor variable. The output is shown below. What is the correct regression equation based on this output? Is this model statistically significant at 5% level of significance (alpha = 0.05)? Select one.

Question 2 options:

Reaction = 3.9999 + 6.0000 Drinks, model is statistically significant

Reaction = 6.0000 + 3.9999 Drinks, model is statistically significant

Reaction = 6.0000 + 3.9999 Drinks, model is not statistically significant

Reaction = 3.9999 + 6.0000 Drinks, model is not statistically significant

Question 3

The height and grade point average of 50 randomly selected students are recorded. The following Python code is used to fit a simple linear regression model using data collected from the sample that is stored in the gpa.csv file. Which of the two variables, "gpa" or "height", is the response variable? Which is the predictor variable? Select one.

import pandas as pd

import statsmodels.formula.api as smf

scores = pd.read_csv()

model = smf.ols(gpa ~ height', scores).fit()

Question 3 options:

gpa and height are both predictor variables.

gpa is the response variable and height is the predictor variable.

gpa and height are both response variables.

height is the response variable and gpa is the predictor variable.

Question 4

Which of the following python methods can be used to perform simple linear regression on a data set? Select all that apply.

Question 4 options:

linregress method from scipy module

simplelinearregression from scipy module

ols method from statsmodels module

Question 5

Which of the following Python methods in scipy.stats submodule returns the P-value for performing a hypothesis test for the significance of the correlation coefficient? Select one.

Question 5 options:

pearsonr from scipy module

pearsonr from pandas module

pearson from scipy module

pearson from pandas module