200 Level Educational Psychology And Guidance & Counseling exam questions and the detailed answers. Download the answers in document format. Correct, detailed, and straightforward answers.
Questions:
The table below shows the test score of students in Edu 222 (Educational Test and Measurement)
| Score | Frequency (F) |
|---|---|
| 60 – 62 | 5 |
| 63 – 65 | 18 |
| 66 – 68 | 42 |
| 69 – 71 | 27 |
| 72 – 74 | 8 |
However, calculate the:
(i) Mean
(ii) Standard Deviation

