The answer you are looking for is B.Oil
Answer: The midpoint, or number that divides a series of value into two group of equal numbers of value is refered to as "MEDIAN".
It can also be used when they is extreme values like the national incomes.
Explanation: The median is a value at the midpoint of a frequency distribution, it is used to denote the center of a line of numbers, it also tells the higher part and the lower part of the numbers. In statistics, median tells the probability of an event to occurs is equal. When median is equal to mean, it means that the frequency of numbers are properly arranged from the lowest order to the highest order.
National household income values are values with frequency of numbers, median can be used to know the midpoint of the numbers and to determine to lower part and the higher part.
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Answer: Reward Power
Explanation:
Reward power is the power persisted by any manager or superior position holding person to provide reward to employees and workers for their outstanding working so that it can influence them perform better in future. This reward can be in form of salary increment, bonus, promotion etc.
According to the question, reward power is used by supervisor for providing gift certificate to employee for his good job as a reward.It is for influencing his job in the project.
Other options are incorrect because expert power and referent power are not the measure for influencing any employee by providing rewards. Thus,the correct option is reward power.
