Consider a given data set represented as a matrix with $50$ rows and $8$ columns giving the following statistics in the respective columns.

Population:

Population estimate as of July $1,1975$

Income:

Per capita income $(1974)$

Illiteracy:

Illiteracy $(1970,$ percent of population$)$

Life Exp:

Life expectancy in years $(1969-71)$

Murder:

Murder and non$-$negligent manslaughter rate per $100,000$ populations $(1976)$

HS Grad:

Percent high$-$school graduates $(1970)$

Frost:

Mean number of days with minimum temperature below freezing $(1931-1960)$ in capital or large city.

Area:

Land area in square miles

You are requested to perform variety of exploratory analytics on given data.

Question $1$:

Find out how many states have an income of less than $4300?$

Question $2$:

Find out which is the state with the highest income.

Question $3$:

Use a scatter plot to compare the different states for Illiteracy vs$.$ LifeExp. The output should look like this:

You are required to use multiple aesthetics together to produce more meaningful comparison between Illiteracy vs$.$ LifeExn. Please see the example figure below.