AKT AKT Data Interpretation and Analysis

Question 1

Which type of data is best represented by a histogram?

Accepted Answer

Continuous numerical data

Answer

Nominal categorical data

Answer

Binary yes/no data

Answer

Ranked ordinal data

Question 2

In a dataset, the value that appears most frequently is called the:

Accepted Answer

Mode

Answer

Mean

Answer

Median

Answer

Range

Question 3

A correlation coefficient of -0.85 between two variables indicates:

Accepted Answer

A strong negative relationship

Answer

No relationship

Answer

A weak positive relationship

Answer

A perfect positive relationship

Question 4

Which measure of spread is most affected by extreme outliers in a dataset?

Accepted Answer

Range

Answer

Interquartile range

Answer

Standard deviation

Answer

Variance

Question 5

When analyzing a pie chart, the angle of each slice is proportional to:

Accepted Answer

The percentage each category represents of the whole

Answer

The absolute value of that category

Answer

The rank of that category

Answer

The difference from the mean

Question 6

A p-value of 0.03 in a statistical test typically means:

Accepted Answer

The result is statistically significant at the 0.05 level

Answer

There is a 3% chance the hypothesis is true

Answer

There is a 97% chance the result occurred by chance

Answer

The effect size is large