As the average daily temperature in des moines, iowa, decreases the number of persons who are observed wearing sweaters in the workplace increases. this is an example of a(n) correlation
a) illusory
b) negative
c) positive
d) zero

This is an example of a negative correlation

Explanation:

A correlation is a unique binary value that represents a link among two items. Negative correlation is a relation within two variables in which one variable rises as the other drops and vice versa.  Negative correlations are symbolized by a minus sign at the beginning of the correlation value.

A correlation of -1 indicates that there is a perfect negative relationship within the variables. One simple example: A load of a vehicle and distances per tun: vehicles that are heavier manage to get fewer miles per tun of gas. Here as person count decreases the number of people wearing sweaters increases which symbolize the negative correlation among them.

answer; (b) ; /stronger bonds between the nations of africa