. It was found that the income of people living in juja is normally distributed with mean 22,000 and standard deviation of ksh 6000. It is believed that those who earn below 15000 are considered to be poor while those earning above

25,000 are considered to be rich.

i. Find the percentage of the population who are considered to be poor and rich.

ii. Given that, most of the population who are earning between ksh 18000 and ksh 21000 are considered to be

middle income earners, find the percentage of the population who belongs to this category

iii. Juja people only consider electing a member to county assembly if the individual earns ksh 25,000 and above.

Majority of the candidate contesting for the position are believed to be earning more. Find the percentage of

people who qualifies to vie for this position if election is based on the income of the individual.​