NPTEL Python for Data Science Week 4 Assignment 4 answers |2020|99.9% ac...

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https://drive.google.com/file/d/1dOZ-YHLRCaSq_l7ffW3b2u5gAgnrUw9p/view

NPTEL Python for Data Science Assignment 3 answers | 2020 Week 3 |99.9% ...

1)Pandas features a number of functions for reading data as a DataFrame object. Which of the following commands are valid? 2)Which of the following is a valid indexing option with DataFrames? 3)Which of the following function allows the use of ‘Lambda expression’ while querying the data? 4)While reading comma-separated values (csv) file into DataFrame., which of the following will be used to set the first column as the index column? 5)Read the given dataset “Tips.csv” as a dataframe “Data”. Which of the following command(s) is/are correct to extract the columns in the following sequence - Time, TotalBill, Tips? 6)Read the given excel sheet ‘Tips1.xlsx’ as a dataframe ‘Data1’. Identify which of the following command (s) is/are correct to merge the two data frames ‘Data’ and ‘Data1’ by columns? 7)Copy the 'Data2' dataframe as 'Data3' (Data3 = Data2.copy()) and identify the command to find the total tips received across Day’s from the dataframe ‘Data3’? 8)Copy the 'Data2' dataframe as 'Data3' (Data3 = Data2.copy()) and find which of the following command (s) gives the count of the Time (‘Dinner' or 'Lunch') across gender? 9)Which of the following plot is a visual representation of the statistical five-number summary of a data? 10)Which of the following statement is not true about histograms? 11)If you have column with categorical variables, which will be the appropriate method to fill in the NaN’s present in the column? 12)Which of the following is not the right command to fill NaN values? 13)For the given dataframe “Data3” plot a histogram for the variable ‘TotalBill’ to check which range has the highest frequency 14)For the given dataframe “Data3” draw a bar chart for the variable “Day”. Identify the category with the maximum count 15)Find the mean of the ‘TotalBill’, ‘Tips’ and ‘Size’ across Days from the dataframe ‘Data3’? 16)On which day sum of the total bill was maximum? 17)What will be the output of ‘a’ and ‘b’? 18) n Pandas library, Dataframe class provides a member function to find duplicate rows based on all columns. Identify the right option. 19)What does the following command do? df.dropna(axis=0, how='all') ? 20)Correlation between two variables X&Y is 0.85. Now, after adding the value 2 to all the values of X, the correlation co-efficient will be --------------------- Practice Assignment 3 --------------------- 1) Which of the following can be inferred from scatter plot of ‘mpg’ (Miles per gallon) vs ‘wt’ (Weight of car) from the dataset mtcars.csv? Answer : a) As weight of the car increases, the mpg decreases 2) Plot a boxplot for “price” vs “cut” from the dataset “diamond.csv”. Which of the categories under “cut” have the highest median price? Answer : d) Fair 3) In the churn.csv dataframe, what are the total no. of missing values for the variable TotalCharges? Answer : c) 15 4) The command used for line plot from the package Matplotlib? Answer : a) plot() 5) The probability of two different events occurring at the same time is known as Answer : c) Joint probability

Non proctored Solutions Python for Data Science Question and Answers

Non proctored Solutions Python for Data Science Question and Answers Download required datasets here : Session 1 Dataset : lending_data.csv https://drive.google.com/file/d/1hHOTQiEVNwqahnYFpp6M5Wgimd3ZYRN1/view Session 2 Dataset : microlending_data.csv https://drive.google.com/file/d/1d_l4XwXED_fqs_1zPeHL_1HC08HJi1n9/view **** PLEASE SUBSCRIBE ...LIKE ****** Non Proctored exam Preparation #jaganinfo #unproctored #nonproctored #nptel #pythonfordatascience #datascience Subscribe if you gain some information from this useful video. Python for Data Science - Non Proctored exam Question and Answers - Revision for Exam This video is explained and executed to get the solutions . All The Best for EXAM ... Note: This video is not responsible for any error or mistakes for your assignments. I have watched the NPTEL course related videos and read the content from different knowledge sources.