BUAL 2600 - EXAM 2 - GRAMLING UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

BUAL 2600 - EXAM 2 - GRAMLING UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS

Question:
1. Measures Central Tendency
Answer:
Mean, Median, Mode

Question:
2. Measures of Variation
Answer:
STD Deviation & Variance; Range & IQR

Question:
3. Measures of Position
Answer:
Quartiles, Percentiles, Z■Scores

Question:
4. Central Tendency
Answer:
A measure of central tendency represents the center or middle of the data

Question:
5. Population Parameter
Answer:
a number calculated from all the population measurements that describes some aspect of the population

Question:
6. Population Mean (µ)
Answer:
is average of the population measurements and most of the time is unknown

Question:
7. Sample Statistic
Answer:
a number calculated using the sample measurements that describes some aspect of the sample

Question:
8. Sample Mean
Answer:
( 5e ■ or 5N5[5f 5c5N5_5V5N5O5Y5R 5[5N5Z5R ) is the average of the sample data

Question:
9. Median

, Answer:
The value of the middle point of the ordered measurements.

Question:
10. For the Median data _________ in numerical order.
Answer:
MUST BE

Question:
11. The mode measures what type of data?
Answer:
-Qualitative data
-It is the ONLY Central tendency measure for qualitative data

Question:
12. Mode
Answer:
The most frequent value for qualitative categories OR quantitative single values

Question:
13. Outliers
Answer:
-are measurements that are very different from other measurements
-either much larger or much smaller than most of the other measurements

Question:
14. What type of outliers cause the data to be RIGHT SKEWED?
Answer:
Outliers that are much larger than majority of the other data points

Question:
15. What type of outliers cause the date to be LEFT SKEWED?
Answer:
Outliers that are much smaller than most of the other data points

Question:
16. How do you find the mean?
Answer:

Question:
17. How do you find the mode?
Answer:

Question:
18. How do you find the median?
Answer: