# Load packages
library(tidyquant) 
library(tidyverse) # for count() function

# Import S&P500 Stock Index
SP500 <- tq_index("SP500")
SP500
## # A tibble: 505 x 8
##    symbol company    identifier sedol  weight sector  shares_held local_currency
##    <chr>  <chr>      <chr>      <chr>   <dbl> <chr>         <dbl> <chr>         
##  1 AAPL   Apple Inc. 03783310   20462~ 0.0648 Inform~   175072270 USD           
##  2 MSFT   Microsoft~ 59491810   25881~ 0.0554 Inform~    81470500 USD           
##  3 AMZN   Amazon.co~ 02313510   20000~ 0.0454 Consum~     4500840 USD           
##  4 FB     Facebook ~ 30303M10   B7TL8~ 0.0221 Commun~    25831024 USD           
##  5 GOOGL  Alphabet ~ 02079K30   BYVY8~ 0.0161 Commun~     3226093 USD           
##  6 GOOG   Alphabet ~ 02079K10   BYY88~ 0.0158 Commun~     3141612 USD           
##  7 BRK.B  Berkshire~ 08467070   20733~ 0.0153 Financ~    20904160 USD           
##  8 JNJ    Johnson &~ 47816010   24758~ 0.0140 Health~    28326900 USD           
##  9 V      Visa Inc.~ 92826C83   B2PZN~ 0.0125 Inform~    18139536 USD           
## 10 PG     Procter &~ 74271810   27044~ 0.0123 Consum~    26609918 USD           
## # ... with 495 more rows

Q1 How many rows does the data have?

505 rows

Q2 How many columns does the data have?

8 columns

Q3 How many companies are listed in S&P500 Index?

505 companies

Q4 What are the top three stocks that have the greatest influence on ups and downs in S&P500 Index?

Hint: Use the weight column of the data.

Apple, Microsoft and Amazon

Q5 List four sectors that are represented in S&P500 Index.

Hint: Use the sector column of the data.

Health care, Financials, Information Technology, Industrials

Q6 What is the symbol of Netflix?

Hint: Use the symbol column of the data.

NFLX

Q7 What sector has the largest represention in S&P500 Index in terms of number of stocks.

Hint: Insert a R code chunk below, type the following code: count(SP500, sector, sort = T)

Industrials has the largest the largest number of companies.

Q8 Hide the messages, but display the code and its results on the webpage.

Hint: Use message, echo and results in the chunk options. Refer to the RMarkdown Reference Guide.

Q9 Display the title and your name correctly at the top of the webpage.

Q10 Use the correct slug.