The workings should be neat and clear

An investor has opened a saving account and. He intends to make deposits of $$20,000$ at

the end of each year for $15$ years. If the saving account pays $10\%$ interest, Use Excel to

compute the accumulated amount at the end of $15$ years?

Solve this problem two ways:

i$)$ Take each amount and calculate its future value in year $15$ and then sum.

ii$)$ Use the FV function

Below is a list of the Nairobi Securities Exchange's daily volumes for two weeks of

trading, in millions of shares.

$669,754,752,771,835,659,755,742,671,845$

Using Excel Functions and Data analysis, compute

i$.$ The mean, Mode and Median for the values

ii$.$ The population variance and standard deviation for these values$2$