What is the molarity of a solution that contains 1.25 moles…

Questions

Whаt is the mоlаrity оf а sоlution that contains 1.25 moles of MgCl2 in 2.5L of solution?

Mаking cоnnectiоns with peоple is pаrt of the leаdership dimension of initiating structure.

ANLY 2500 Hоmewоrk 8: Tаbleаu 2    Hоmework Questions/Tаsks Starter File: Edx_academic_2012-13.csv   Tableau Public Business Context: EdX is an American massive open online course provider created by Harvard and MIT. It hosts online university-level courses across a wide range of disciplines for a worldwide student body, including some courses available at no charge. The analytics team will conduct research on how people use its platform.   Dataset description: The dataset contains information on learner engagement and certification status for courses offered by EdX in the academic year 2012-2013. It includes 51,231 records and has 18 columns, with details summarized as follows: course_id, course_short_title, course_long_title: Identifiers and titles of courses. learner_id: Unique identifier for each learner. certification_id: ID for the certification, if any. certified: Indicates if a learner obtained a certification (1) or not (0). country: Country of the learner. learner_qualification: Educational qualification of the learner. learners_year_of_birth and age: Birth year and age of the learner. gender: Gender of the learner, with some missing values. grade: Final grade, with some missing values. start_time_DI and last_event_DI: Start and last activity dates. number_of_days_active: Number of days the learner was active. number_of_chapters: Chapters completed, with some missing values. number_of_forum_post: Number of forum posts by the learner. incomplete_flag: Indicates if the learner completed the course (0) or not (1).    Objective: As a Data Scientist, you are supposed to create an analytical report for the academic year 2012-13. Create the following dashboard for the director to support decisions for the next academic year: EdX - Academic Business Report - Summary EdX - Academic Business Report – Geographical Analysis EdX - Academic Business Report - Learners' Attributes   Dashboard 1: EdX - Academic Business Report - Summary To create the summary dashboard, four worksheets need to be set up with the following information: Task 1: (2 points) Worksheet 'Number of Learners': Drag and drop 'Learner ID' into the large blank panel in the worksheet with text 'Drop field here,' then change it to the measure 'Count Distinct.' Use the following formula in a calculated field to create the field “University.” This field will help segregate the data based on the 'University' column: IF CONTAINS([Course ID], "Harvard") THEN "Harvard"ELSEIF CONTAINS([Course ID], "MIT") THEN "MIT"ELSE "Others"END Add two filters: 'University' and 'Country' by dragging and dropping these columns into 'Filters.' Task 2: (2 points) Worksheet 'Number of Courses Offered': Drag and drop 'Course ID' into the large blank panel in the worksheet with text 'Drop field here,' then change it to the measure 'Count Distinct.' Task 3: (2 points) Worksheet 'Course Completion Status (in %)': Create a calculated field named 'Incomplete Flag (D)' as a duplicate of the 'Incomplete Flag' column. Change 'Incomplete Flag (D)' to a dimension. Use 'Learner ID' and 'Incomplete Flag (D).' Change 'Learner ID' to the measure 'Count'. Then, in the dropdown menu of 'Learner ID,' select 'Quick Table Calculation' -> 'Percent of Total.' Change the chart type to 'treemaps.' Task 4: (2 points) Worksheet 'Number of Learners in Each Course': Use 'Learner ID' and 'Course ID.' Change 'Learner ID' to the measure 'Count Distinct.' Set the chart type to 'bar' and display the number on each bar. Task 5: (2 points) Create the Dashboard 'EdX - Academic Business Report - Summary': Replicate the layout as shown in the Tableau visualization. Add the 'University' and 'Country' filters by clicking the down-arrow icon in 'Number of Learners' and selecting 'Filters.' Click the down-arrow icon on each filter, choose 'Apply to Worksheet' -> 'Selected Worksheets...', and check all relevant worksheets. For each filter, click the down-arrow icon and select "Single Value (dropdown)."   Dashboard 2: EdX - Academic Business Report – Geographical Analysis Task 6: (2 points) Worksheet 'Number of Learners in Each Country': Drag and drop 'Country' into the large blank panel in the worksheet labeled 'Drop field here.' Drag and drop 'Learner ID' into 'Label,' then change it to the measure 'Count Distinct.' Drag and drop 'Learner ID' into 'Color,' then change it to the measure 'Count Distinct.' Create a calculated field named 'Certified (D)' as a duplicate of the 'Certified' column. Change 'Certified (D)' to a dimension. Add three filters: 'University,' 'Course ID,' and 'Certified (D)' by dragging these fields into 'Filters.' Task 7: (2 points) Create the Dashboard 'EdX - Academic Business Report – Geographical Analysis': Replicate the layout shown in the Tableau visualization. Add the filters 'University,' 'Course ID,' and 'Certified (D)' by clicking the down-arrow icon in 'Number of Learners in Each Country' and selecting 'Filters.' For each filter, click the down-arrow icon and select "Single Value (dropdown)."   Dashboard 3: EdX - Academic Business Report - Learners' Attributes Task 8: (2 points) Worksheet 'Learner Age Distribution (Histogram)': Drag and drop 'Age' into the large blank panel labeled 'Drop field here.' Change the chart type to 'Histogram.' Task 9: (2 points) Worksheet 'Number of Learners in Each Qualification Level': Drag and drop 'Learner Qualification' into 'Rows.' Drag and drop 'Learner ID' into 'Columns,' then change it to the measure 'Count Distinct.' Change the chart type to 'Bar' and sort it in descending order. Add four filters: 'University,' 'Incomplete Flag (D),' 'Country,' and 'Gender' by dragging these fields into 'Filters.' Task 10: (2 points) Create the Dashboard "EdX - Academic Business Report - Learners' Attributes": Replicate the layout as shown in the Tableau visualization. Add the filters 'University,' 'Incomplete Flag (D),' 'Country,' and 'Gender' by clicking the down-arrow icon in 'Learner Age Distribution (Histogram)' and selecting 'Filters.' For each filter, click the down-arrow icon and select "Single Value (dropdown)."   Here is an example of how the final viz should look. Yours does not need to be exactly the same.   HW 8 Tableau Viz