mass is in kg and height is in m) vars %>% mutate(mass height^2) <- starwars %>% mutate(mass/(height/100)^2) vars %>% mutate(BMI = mass/height^2) wars %>% mutate(BMI = mass/(height/100))
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- What is the value of the mode when all values in the data set are distinct? NoneOneNumber of observationsZeroCreate a variable named data that stores the result of this equation, 10x + 2y.15. Suppose that Column B contains 100 observations of a string variable. Which of the following is therefore true? a. The command =AVERAGE(B2:B101)/100 will return the average value of this variable. b. The "COUNTIF" command cannot be applied to the data in this column. C. The "MODE" command can be applied to the data in this column. d. The "MEDIAN" command cannot be applied to the data in this column.
- Create the DISPLAY_OWNER procedure which obtains the first name and last name of the owner whose number currently is stored in I_OWNER_NUM (provided as a parameter). Place these values in the variables I_FIRST_NAME and I_LAST_NAME. Output the contents of I_OWNER_NUM, I_FIRST_NAME, and I_LAST_NAME. IN MYSQLThe APPT_DTTM column stores the date and time of an appointment. Which of the following expressions would return TRUE for all appointments on January 1, 2018, and FALSE for all other appointments? SELECT ONE OF THE FOLLOWING A. APPT_DTTM >= '1 JAN 2018' AND APPT_DTTM < '2 JAN 2018' B. APPT_DTTM = '1 JAN 2018' C. APPT_DTTM > '31 DEC 2017' AND APPT_DTTM <= '1 JAN 2018' D. APPT_DTTM > '31 DEC 2017' AND APPT_DTTM < '2 JAN 2018' Choose one correct answer and what is output of remaining queries with proper explanationWhich of the following values/results are of the datatype float? Select one -True -34 -‘Please print the following values:’ -67.34 -No answer text provided.
- Q3:Create a series called 'directors' that contains each director's name and his or her average rating. Print out the type of your variable. Q4:Select the non-USA movies made after 1960 by Hayao Miyazaki.Save the result in a DataFrame called 'miyazaki', then print it. Here are the steps:1. Query the data ('df' DataFrame) based on the following conditions:- Non-USA movies (country_id != 1)- Movies made after 1960 (title_year > 1960)- Movies made by director Hayao Miyazaki (director_id == 46)2. Save the filtered data in a DataFrame called 'miyazaki' and print it Q5:Create a Pivot Table that shows the median rating for each director, grouped by their respective countries. Name your variable'pivot_agg' Q6:How long did the movie Gladiator aim to keep your attention? Save the series with this informationin a variable called 'gladiator_duration', then print it.Here_to change it throughout your code. .User Satisfaction team wants to send monthly summaries for each user. They need the following details with the user ID: The last day of the month when the users traveled most recently One week after the last day of the month when the users traveled most recently You need to return a three-column output with USER_ID, LAST_TRAVEL_MONTH and NOTIFICATION. LAST_TRAVEL_MONTH should be calculated using the MAX of the LAST_DAY of the TRAVEL_END_TIME field. Similarly, NOTIFICATION should be calculated with DATE_ADD function to add one week. Query monthly summaries for each user. Make sure to add one week to the last day of the month using the INTERVAL keyword in the DATE_ADD() function.
- User Satisfaction team wants to send monthly summaries for each user. They need the following details with the user ID: The last day of the month when the users traveled most recently One week after the last day of the month when the users traveled most recently You need to return a three-column output with USER_ID, LAST_TRAVEL_MONTH and NOTIFICATION. LAST_TRAVEL_MONTH should be calculated using the MAX of the LAST_DAY of the TRAVEL_END_TIME field. Similarly, NOTIFICATION should be calculated with DATE_ADD function to add one week. using mySQLUser Satisfaction team wants to send monthly summaries for each user. They need the following details with the user ID: The last day of the month when the users traveled most recently One week after the last day of the month when the users traveled most recently You need to return a three-column output with USER_ID, LAST_TRAVEL_MONTH and NOTIFICATION. LAST_TRAVEL_MONTH should be calculated using the MAX of the LAST_DAY of the TRAVEL_END_TIME field. Similarly, NOTIFICATION should be calculated with DATE_ADD function to add one week.Some rows of the STUGRADE table of a school are shown below: STU_CODE CLS_CODE GRADE YEAR 291 111 3.1 2010 938 101B 2.3 2011 931 M101 3.3 2040 291 M101 3.4 2018 190 111 2.0 2021 931 321 3.9 2003 You want to show all STU_CODE with average grades higher than 3.0. Which of the following gets the required data? a. SELECT STU_CODE, AVG(GRADE) FROM STUGRADE WHERE AVG(GRADE) > 3.0 GROUP BY STU_CODE b. SELECT STU_CODE, AVG(GRADE) FROM STUGRADE WHERE GRADE > 3.0 GROUP BY STU_CODE c. SELECT STU_CODE, AVG(GRADE) FROM STUGRADE GROUP BY STU_CODE HAVING AVG(GRADE) > 3.0 d. SELECT STU_CODE, AVG(GRADE) FROM STUGRADE WHERE AVG(GRADE) > 3.0 AND STU_CODE GROUP BY STU_CODE