Skip to main content

Data Mining Graded Quiz • 10 min(Data science) (ibm) quiz 2 (Coursera)

Congratulations! You passed!
TO PASS 80% or higher
GRADE
80%

Data Mining

LATEST SUBMISSION GRADE
80%
1.Question 1
According to the reading, the output of a data mining exercise largely depends on:
Correct
Correct.
1 / 1 point
2.Question 2
When data are missing in a systematic way, you can simply extrapolate the data or impute the missing data by filling in the average of the values around the missing data.
Correct
Correct. When data are missing in a systematic way, you should determine the impact of missing data on the results and whether missing data can be excluded from the analysis.
1 / 1 point
3.Question 3
Prior Variable Analysis and Principal Component Analysis are both examples of a data reduction algorithm.
Correct
Correct. Prior Variable Analysis is not a data reduction algorithm.
1 / 1 point
4.Question 4
After the data are appropriately processed, transformed, and stored, machine learning and non-parametric methods are a good starting point for data mining.
Correct
Correct.
1 / 1 point
5.Question 5
“Formal evaluation could include testing the predictive capabilities of the models on observed data to see how effective and efficient the algorithms have been in reproducing data.” This is known as:
Incorrect
Incorrect.

Comments

Post a Comment

Popular posts from this blog

How to Read .CSV file in Pandas

import pandas as pd df = pd . read_csv ( 'downloads/adeshbhai.csv' ) df . head () Out[1]: Region Country Item Type Sales Channel Order Priority Order Date Order ID Ship Date Units Sold Unit Price Unit Cost Total Revenue Total Cost Total Profit 0 Australia and Oceania Tuvalu Baby Food Offline H 5/28/2010 669165933 6/27/2010 9925 255.28 159.42 2533654.00 1582243.50 951410.50 1 Central America and the Caribbean Grenada Cereal Online C 8/22/2012 963881480 9/15/2012 2804 205.70 117.11 576782.80 328376.44 248406.36 2 Europe Russia Office Supplies Offline L 5/2/2014 341417157 5/8/2014 1779 651.21 524.96 1158502.59 933903.84 224598.75 3 Sub-Saharan Africa Sao Tome and Principe Fruits Online C 6/20/2014 514321792 7/5/2014 8102 9.33 6.92 75591.66 56065.84 19525.82 4 Sub-Saharan Africa Rwanda Office Supplies Offline L 2/1/2013 115456712 2/6/2013 5062 651.21 524.96 3296425.02 2657347.52 639077.50 In [2]: df . tail () Out[2]: Reg...
Post a Comment
Read more

Regression Graded Quiz week 2 quiz (ibm) Coursera

Congratulations! You passed! TO PASS   80% or higher Keep Learning GRADE 80% Regression LATEST SUBMISSION GRADE 80% 1. Question 1 Based on the reading, which of the following best describes the real added value of the author's research on residential real estate properties? Quantifying the magnitude of relationships between housing prices and different determinants. Quantifying people's preferences of different transport services. The research revealed findings that opposed basic perceptions that people hold about the real estate properties. The research determined that there was no correlation between proximity to shopping centres and housing prices. Correct Correct. The research confirmed many perceptions that people have about real estate properties but it major contribution is quantifying the magnitude of the relationships between the housing prices and different deter...
Post a Comment
Read more

Assignment 4 - Understanding and Predicting Property Maintenance Fines

You are currently looking at  version 1.0  of this notebook. To download notebooks and datafiles, as well as get help on Jupyter notebooks in the Coursera platform, visit the  Jupyter Notebook FAQ  course resource. Assignment 4 - Understanding and Predicting Property Maintenance Fines This assignment is based on a data challenge from the Michigan Data Science Team ( MDST ). The Michigan Data Science Team ( MDST ) and the Michigan Student Symposium for Interdisciplinary Statistical Sciences ( MSSISS ) have partnered with the City of Detroit to help solve one of the most pressing problems facing Detroit - blight.  Blight violations  are issued by the city to individuals who allow their properties to remain in a deteriorated condition. Every year, the city of Detroit issues millions of dollars in fines to residents and every year, many of these fines remain unpaid. Enforcing unpaid blight fines is a costly and tedious process, so the city...
Post a Comment
Read more