Answer to Question #295467 in Python for suresh

Question

 

1.    After imputation of nulls with mean what is the average value of the compressive strength in concrete?

2.    The feature that has a moderately strong relationship with compressive strength in concrete is?

3.    Standardize the dataset using standardscaler(), split the dataset into train and test of proportions 70:30 and set the random state to 1. Build a Linear Regression Model on the data and the resulting r-squared value is between which range?

Answer 1

(1) The average compressive strength of the concrete was 58.6 MPa.

(2) Compressive Strength

(3)

from sklearn.preprocessing import StandardScaler
sc = StandardScaler()
X = sc.fit(X)
X = sc.transform(X)