Test your data skills ! Take A Skill Test Excel Data Visualization Power BI Python /10 5 Time up !! Data Science Test 1 / 10 1. Confusion Matrix is used for in machine learning models to ... adding noise splitting data add confusion Testing accuracy 2 / 10 2. What is the image above ? A planet Library Language IDE 3 / 10 3. Machine Learning problems are primarily of 2 types which are ... Numeric and Non-Numeric Regression and Variance Variance and Covariance Classification and Regression 4 / 10 4. While building a machine learning model we split the data into ? test and sample test and train real and virtual dummy and actual 5 / 10 5. Which of the following would you use to check the performance of a classification machine learning model in python ? match rmse accuracy score R2 score 6 / 10 6. In PowerBI one can use following to manage the data ? microquery powerquery sql java 7 / 10 7. Which of these is not an excel file type ? .xlc .xls .xlsm .xlsx 8 / 10 8. While building a machine learning model we split the data into ? dummy and actual test and train real and virtual test and sample 9 / 10 9. What is this chart type ? Chord chart Web chart Line chart Sankey Diagram 10 / 10 10. Which chart would you use for correlation ? Scatter Plot Bar Chart Sankey Pie Chart Your score is LinkedIn Facebook 0% Please rate this quiz Send feedback /9 2 Time up !! Excel Test 1 / 9 1. What does the function =LEN(A1) do in Excel? Extracts the left part of the text in cell A1 Returns the leftmost character in cell A1 Calculates the length of the text in cell A1 Counts the number of numerical values in cell A1 2 / 9 2. Which of the following is NOT a valid chart type in Excel? Pie Chart Histogram Sankey Diagram Scatter Plot 3 / 9 3. Which feature in Excel allows you to filter and summarize data from a large dataset? Data Validation Solver PivotTable Conditional Formatting 4 / 9 4. How do you start a formula in Excel? By typing a hash (#) By typing an asterisk (*) By typing a slash (/) By typing an equals sign (=) 5 / 9 5. Which function would you use to find the average of a range of cells in Excel? AVERAGE MEDIAN COUNT SUM 6 / 9 6. What shortcut key combination is used to copy the selected cells in Excel? Ctrl + X Ctrl + C Ctrl + Z Ctrl + V 7 / 9 7. Which function can be used to look up a value in a table and return a corresponding value from a specified column? INDEX MATCH VLOOKUP HLOOKUP 8 / 9 8. Which feature allows you to quickly fill a range of cells with a series of values based on the content of other cells? AutoFill AutoComplete Fill Handle Flash Fill 9 / 9 9. Which feature in Excel allows you to filter and summarize data from a large dataset? Solver Data Validation Conditional Formatting PivotTable Your score is LinkedIn Facebook 0% Please rate this quiz Send feedback /5 Time up !! Data Visualization Try this quiz ! 1 / 5 1. Which visual would you use to display trends over time in Power BI? Line Chart Pie Chart Bar Chart Scatter Plot 2 / 5 2. Which type of chart is best suited for showing parts of a whole in Power BI? Scatter Plot Pie Chart Line Chart Bar Chart 3 / 5 3. Which chart would you use for correlation ? Pie Chart Sankey Scatter Plot Bar Chart 4 / 5 4. What is this chart type ? Line chart Web chart Sankey Diagram Chord chart 5 / 5 5. Which of the following handles outliers in the best way ? Mode Mean Standard Deviation Median Your score is LinkedIn Facebook 0% Please rate this quiz Send feedback /10 0 Time up !! Machine Learning Test 1 / 10 1. Which of the following is not a supervised learning algorithm? K-nearest neighbors (KNN) Linear regression Decision tree K-means clustering 2 / 10 2. Confusion Matrix is used for in machine learning models to ... Testing accuracy add confusion adding noise splitting data 3 / 10 3. Which of the following would you use to check the performance of a classification machine learning model in python ? rmse R2 score accuracy score match 4 / 10 4. While building a machine learning model we split the data into ? test and sample real and virtual dummy and actual test and train 5 / 10 5. What is the purpose of feature scaling in machine learning? To normalize the feature values To improve model interpretability To increase the dimensionality of the feature space To reduce overfitting in the model 6 / 10 6. KNN is used for which kind of machine learning problems ? Regression Unsupervised Classification Polynomial 7 / 10 7. Which of the following handles outliers in the best way ? Mode Median Mean Standard Deviation 8 / 10 8. While building a machine learning model we split the data into ? test and train real and virtual test and sample dummy and actual 9 / 10 9. Which of the following evaluation metrics is appropriate for a binary classification problem? Precision Mean Absolute Error (MAE) R-squared (R2) score Root Mean Squared Error (RMSE) 10 / 10 10. Which of the following would you use to minimize the impact of outlier ? Mean Median Min Max Your score is LinkedIn Facebook 0% Please rate this quiz Send feedback /10 0 Time up !! PowerBI Test 1 / 10 1. What is the purpose of the "Page Navigation" feature in Power BI? To filter data within a report To move between different pages of a report To move between different visuals on a page To export data to Excel 2 / 10 2. What is the purpose of the "Dataflow" feature in Power BI? To share reports and dashboards To create calculated columns To build visualizations To transform and clean data in the cloud 3 / 10 3. How can you add a new data source to an existing Power BI report? By clicking the "New Data Source" button By using the "Get Data" button By reopening the report By saving the report 4 / 10 4. Which of the following is a valid DAX function? SPLIT JOIN SUMX CONCAT 5 / 10 5. How can you apply a theme to a Power BI report? By using the Home tab By using the Format pane By using the Data pane By using the View tab 6 / 10 6. What is the purpose of the "Hierarchy" feature in Power BI? To transform and clean data To export data To create data models To organize data into levels 7 / 10 7. How do you publish a Power BI report to the Power BI Service? By sending the report via email By saving the report as a .pbix file By clicking the Publish button in Power BI Desktop By exporting the report to Excel 8 / 10 8. Which of the following is a data visualization feature in Power BI? Custom Visuals DAX Dataflows Data Models 9 / 10 9. Which of the following is a cloud-based business analytics service? Power BI Service Power Query Power BI Desktop Power Pivot 10 / 10 10. How do you create a calculated measure in Power BI? Using the Power Query Editor Using the Relationship view Using the Visualization pane Using the Data view and DAX formula Your score is LinkedIn Facebook 0% Please rate this quiz Send feedback /10 0 Time up !! Python Test 1 / 10 1. What is the output of print(2 + 2 == 4) in Python? TRUE FALSE 4 2+2 2 / 10 2. How do you add an element to a set in Python? set.add(element) set.insert(element) set.push(element) set.append(element) 3 / 10 3. How do you create a new list with elements of an existing list in uppercase in Python? [x.upper() for x in list] [x.capitalize() for x in list] [x.uppercase() for x in list] [x.upper_case() for x in list] 4 / 10 4. What is the output of print(5 > 3 and 2 < 4) in Python? Error FALSE TRUE 5 > 3 and 2 < 4 5 / 10 5. What is the output of print("Hello, World!".split(',')) in Python? ['Hello,', 'World!'] ['Hello', 'World'] ['Hello', ' World!'] ['Hello World!'] 6 / 10 6. How do you check the length of a string in Python? length(string) string.len() string.length() len(string) 7 / 10 7. What is the output of print(10 % 3) in Python? 1 2 3 0 8 / 10 8. How do you create a virtual environment in Python? python -m virtualenv myenv python venv create myenv python create venv myenv python -m venv myenv 9 / 10 9. How do you remove duplicates from a list in Python? list(list) list.remove_duplicates() list(set(list)) list.unique() 10 / 10 10. Which method is used to convert a string to lowercase in Python? lower() strtolower() low() tolower() Your score is LinkedIn Facebook 0% Please rate this quiz Send feedback
