$(2$ points$)$ Create a data frame df with one numeric vector indices and two character vectors

firstNames and surnames with length $5,$ respectively. The vector indices consists of randomly

chosen values from $1$ to $10($the same values are NOT allowed to appear several times$).$ The

entries of firstNames are randomly chosen from the names $$Alex$,$Peter$,$Tom$($the same

values are allowed to appear several times$),$ and the entries of surnames are randomly chosen

from the names $$James$$ and $$Miller$($the same values are allowed to appear several times$).$

# Your solution

b$)(1$ point$)$ Select all elements of the data frame df$,$ where the value of indices is greater than

$7.$ Also, select all elements of the data frame df$,$ where firstNames is $$Alex$.$

# Your solution

c$)(1$ point$)$ Select all elements of the data frame df$,$ where both the value of firstNames is

$$Tom$,$ and the surnames is $$Miller$.$

# Your solution

$3$