Understanding Data and Statistics

What does the mean represent in data analysis?

• The difference between the highest and lowest values

• The average value of the dataset

• The most frequently occurring value

• The middle value of the dataset

How is the median determined in a dataset?

• By ordering the data and finding the middle value

• By dividing the sum of all values by the number of values

• By subtracting the lowest value from the highest value

• By finding the value that appears most frequently

What percentage of students chose sugar as their favorite cookie flavor?

• 24%

• 36%

• 50%

• 12%

What does the range in a dataset tell us?

• The average value

• The most frequent value

• The middle value

• The spread of the data

In the circle graph example, how many more people preferred rock over jazz?

• 25 people

• 500 people

• 30 people

• 125 people

What does a dot plot represent?

• Data spread and outliers

• Frequency of data points

• Percentage of a whole

• Categorical data

Which statement was true according to the dot plot example?

• Mitch's median miles were less than Ivan's

• The mode of Ivan's miles was less than Mitch's

• Ivan's mode of miles was greater than Mitch's

• Ivan's range of miles was greater than Mitch's

What is the median of the data from grade 10 in the box plot example?

• 6

• 8

• 7

• 5

Which grade had a larger range of study hours per week?

• Cannot be determined

• Grade 9

• Grade 10

• Both had the same range

What does the third quartile represent in a box plot?

• The first 25% of the data

• The median of the dataset

• 75% of the data falls below this value

• The maximum value of the dataset