Quiz 1

# 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~ 0.0680 Inform~   174257380 USD           
##  2 MSFT   Microsoft~ 59491810   25881~ 0.0570 Inform~    81091260 USD           
##  3 AMZN   Amazon.co~ 02313510   20000~ 0.0487 Consum~     4479924 USD           
##  4 FB     Facebook ~ 30303M10   B7TL8~ 0.0234 Commun~    25710758 USD           
##  5 GOOGL  Alphabet ~ 02079K30   BYVY8~ 0.0165 Commun~     3211070 USD           
##  6 GOOG   Alphabet ~ 02079K10   BYY88~ 0.0162 Commun~     3127004 USD           
##  7 BRK.B  Berkshire~ 08467070   20733~ 0.0152 Financ~    20806968 USD           
##  8 JNJ    Johnson &~ 47816010   24758~ 0.0140 Health~    28195180 USD           
##  9 V      Visa Inc.~ 92826C83   B2PZN~ 0.0123 Inform~    18055208 USD           
## 10 PG     Procter &~ 74271810   27044~ 0.0122 Consum~    26486164 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?

Apple Microsoft Amazon

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

Energy Information Technology Consumer Discretionary Consumer Staples

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.

Industrials has the largest reprentation

count(SP500, sector, sort = T)

## # A tibble: 11 x 2
##    sector                     n
##    <chr>                  <int>
##  1 Industrials               73
##  2 Information Technology    71
##  3 Financials                66
##  4 Health Care               62
##  5 Consumer Discretionary    61
##  6 Consumer Staples          33
##  7 Real Estate               31
##  8 Materials                 28
##  9 Utilities                 28
## 10 Communication Services    26
## 11 Energy                    26

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

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.