Biochemistry Exam 2 Updated Actual Questions And Correct Answers

BIOCHEMISTRY EXAM 2 UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS

Question:
1. What is used to verify the acceptability of new methods
prior to reporting patient results?

Answer:
Method evaluation

Question:
2. What is the first step of method evaluation?

Answer:
Determine imprecision and inaccuracy

Question:
3. What is the foundation for monitoring performance
(known as QC)?

Answer:
Descriptive statistics

Question:
4. What are the three measures of center?

Answer:
Mean, median, mode

Question:
5. What is the most commonly used measure of center and
often called the average?

Answer:
Mean

Question:
6. What is the middle point and is often used with skewed
data so that outliers do not significantly affect the
calculation?

Answer:
Median

, Question:
7. What is the measure of center that is rarely used and is
the most frequently occurring value in a data set?

Answer:
Mode

Question:
8. What is the term for how data is distributed?

Answer:
Spread

Question:
9. What is the term for distribution of a data set?

Answer:
Shape

Question:
10. What is the difference between test and reference
method results?

Answer:
Error

Question:
11. What is the term for when the mean, median, and mode
are identical and distribution is symmetrical?

Answer:
Gaussian or bell curve

Question:
12. What is the total area under a Gaussian distribution?-
What percent falls within 1 SD?- What percent falls within
2 SD?- What percent falls within 3 SD?

Answer:
1.0 or 100%
68.3%
95.4%
99.7%