How are the economies of south africa and nigeria different from each other?

"Feb 2, 2018 - While Nigeria is the continent's largest economy, South Africa is its most ... ethnic and religious identities and differences in Nigeria by keeping the ... from South Africa and Nigeria now frequently cross each other's borders, ... "

The major difference between the two economies is the diversification of each. The South African economy is characterized as being highly diversified, whereas the Nigerian economy focuses on one sector of the economy (crude oil mining and exportation).

We are given:

We need to find the z scores for the following vacation expense amounts:

$197, $277, $310

We know that z score formula is:

When , the z score is:

       

       

When , the z score is:

       

       

When , the z score is:

       

       

Therefore, the z scores for the vacation expense amounts $197 per day, $277 per day, and $310 per day are -0.83, 0.5 and 1.05 respectively