PhD NUCK Final Exam_50Q

1. 1. Which of the following is a measure of central tendency?

• Variance

• Standard Deviation

• Mode

• Range

• Interquartile Range

1. 2. What is the primary purpose of calculating the median?

• To measure the spread of data

• To identify the most frequently occurring value

• To determine the middle value in a sorted dataset

• To calculate the total sum of values

• To find the average of a dataset

1. 3. What is the mode of a dataset?

• The value that appears most frequently

• The average of all values

• The value that appears least frequently

• The middle value when sorted

• The total number of values

1. 4. Which of the following measures is not a measure of central tendency?

• Standard Deviation

• Geometric Mean

• Mode

• Median

• Mean

1. 5. How is the median calculated in a dataset with an even number of values?

• By selecting the highest value

• By averaging the two middle values

• By selecting the lowest value

• By counting the total number of values

• By finding the mode

1. 6. What is the mean of a dataset?

• The highest value in the dataset

• The sum of all values divided by the number of values

• The lowest value in the dataset

• The middle value when sorted

• The value that appears most frequently

1. 7. Which measure of central tendency is most affected by outliers?

• Harmonic Mean

• Geometric Mean

• Mode

• Median

• Mean

1. 8. In a skewed distribution, which measure is typically more representative of the data?

• Variance

• Mean

• Range

• Mode

• Median

1. 10. Which measure of central tendency is least affected by outliers?

• Mode

• Geometric Mean

• Harmonic Mean

• Median

• Mean

1. 11. What is the primary difference between a population and a sample in statistics?

• A sample is a type of population

• There is no difference

• A sample is always more accurate than a population

• A population is always larger than a sample

• A population includes all members, while a sample includes a subset