$1.$ Select one stock from the BIST$30$ Index and download the data for the period from

beginning of $2019$ to end of $2023$ and do the following steps in R$.$

$($a$)$ Plot the price graph of this stock and comment on the behaviour of the stock

prices

$($b$)$ Calculate and plot the return series of this stock for the same period and

comment on the behaviour of return series

$($c$)$ Think you have invested $1000$ lira in the beginning of the period and calculate

the day$-$to$-$day values and final value of the investment by using return data

$($d$)$ Calculate and plot the log return series of this stock for the same period and

comment on the behaviour of return series

$($e$)$ Calculate the day$-$to$-$day values and final value of the investment by using logreturn data. Is the final value of the investment same when you used return

series and log return series.

$($f$)$ Draw the histograms of both return and log$-$return series. Do these histograms

show normality?

$($g$)$ Calculate the basic statistics $($mean$,$ standard deviation, skewness, kurtosis$)$

for both the return and log return. Can you make inferences for the normality

by using these statistics?