Please provide answers with code.  Following, please provide coding for these questions   A.  How many times is wind greater than or equal to 10.0 and the temperature greater than 70, on the same day? B. How many rows have missing data in either the Ozone or the Solar.R (that is, NA is one of the values)?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Please provide answers with code.  Following, please provide coding for these questions

 

A.  How many times is wind greater than or equal to 10.0 and the temperature greater than 70, on the same day?

B. How many rows have missing data in either the Ozone or the Solar.R (that is, NA is one of the values)? 

For Questions 11 to 15, start withan R command which creates DataFrameC, a dataframe filled with data from one of R's standard datasets. This dataset provides information about Air Quality in New York from 1 May to 30 September.
install.packages ("datasets")
library(datasets)
DataFrameC <- airquality
> head (DataFrameC)
Ozone Solar.R Wind Temp Month Day
1 41 190 7.4 67 5 1
2 36
118 8.0 72 5 2
3 12
149 12.6 74 5 3
4 18
313 11.5 62 54
5 NA
5 5
6 28
56
[Handy tip - if you use Courier font, your tables will be easier to read. In R, you can change the font from the Drop Down menu, choosing EDIT/GUI preferences]
Q11. What is the average temperature for the month of September only (that is, when the Month = 9)? Round to the nearest integer.
NA 14.3 56
NA 14.9 66
Transcribed Image Text:For Questions 11 to 15, start withan R command which creates DataFrameC, a dataframe filled with data from one of R's standard datasets. This dataset provides information about Air Quality in New York from 1 May to 30 September. install.packages ("datasets") library(datasets) DataFrameC <- airquality > head (DataFrameC) Ozone Solar.R Wind Temp Month Day 1 41 190 7.4 67 5 1 2 36 118 8.0 72 5 2 3 12 149 12.6 74 5 3 4 18 313 11.5 62 54 5 NA 5 5 6 28 56 [Handy tip - if you use Courier font, your tables will be easier to read. In R, you can change the font from the Drop Down menu, choosing EDIT/GUI preferences] Q11. What is the average temperature for the month of September only (that is, when the Month = 9)? Round to the nearest integer. NA 14.3 56 NA 14.9 66
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