6. Media Research and Theory
Statistical Literacy — Quiz
Test your understanding of statistical literacy with 5 practice questions.
Practice Questions
Question 1
A media researcher is analyzing the results of a survey where respondents rated a new documentary on a scale from 1 to 10. The ratings are: $[6, 8, 7, 5, 9, 6, 8, 7, 9, 6]$. What is the standard deviation of this dataset (rounded to two decimal places)?
Question 2
A media company conducted a survey on the number of hours spent watching online videos per day. The responses for a sample group are: $[2, 3, 5, 4, 3, 2, 4, 3, 5, 4]$. What is the interquartile range (IQR) of this dataset?
Question 3
A media researcher is analyzing the relationship between the number of social media posts per day and the number of likes received. They calculate a correlation coefficient of $r = 0.72$. What does this value indicate about the relationship between the two variables?
Question 4
A media company is analyzing the results of a survey on the number of ads watched per day. The data is: $[3, 5, 4, 6, 5, 4, 5, 6, 5, 4]$. What is the median of this dataset?
Question 5
A media researcher is studying the percentage of viewers who prefer different genres of TV shows. The data shows: $30\%$ prefer comedy, $25\%$ prefer drama, $20\%$ prefer action, and $25\%$ prefer documentaries. What is the mode of this dataset?