Answer:
Arithmetic = 3%
Geometric = 2.37%
Explanation:
The arithmetic average of 'n' returns is given by:
For five returns of 5% ,21%, -12%, 7%, and -6%:
The geometric average of 'n' returns is given by:
![G=\sqrt[n]{(1+r_1)*(1+r_2)*...*(1+r_n)}-1](https://tex.z-dn.net/?f=G%3D%5Csqrt%5Bn%5D%7B%281%2Br_1%29%2A%281%2Br_2%29%2A...%2A%281%2Br_n%29%7D-1)
For five returns of 5% ,21%, -12%, 7%, and -6%:
![G=\sqrt[5]{(1+0.05)*(1+0.21)*(1-0.12)*(1+0.07)*(1-0.06)}-1\\G=0.0237=2.37\%](https://tex.z-dn.net/?f=G%3D%5Csqrt%5B5%5D%7B%281%2B0.05%29%2A%281%2B0.21%29%2A%281-0.12%29%2A%281%2B0.07%29%2A%281-0.06%29%7D-1%5C%5CG%3D0.0237%3D2.37%5C%25)
Answer: Secondary data
Explanation: In simple words, the data that is collected by someone and is used by someone else is called secondary data. Government reports and surveys by other such organisation are two of the many examples of secondary data.
In the given case, Sandra collected information for her future business from the published research reports. She did not collected data from a census conducted by herself.
Hence, from the above we can conclude that the correct option is B.
Answer:
Alternation ranking method.
Explanation:
Tony, a production manager at Brighton Biometrics, needs to measure the performance of 10 subordinates. He writes their names on a paper and circles Paula's name as the best-performing employee of the group. He then circles Erma's name as the worst employee of the group. He rates the remaining employees as second best, second worst, and so on. In the context of methods of performance measurement, Tony is using the alternation ranking method.
This method basically ranks employees from the very best to the worst based on a particular trait. Choosing the highest down to the lowest until every one of them are ranked.
