Exploring Double Stem and Leaf Plots

The video tutorial introduces double stem and leaf plots, explaining their use in representing two sets of data on one graph. An example using test scores of boys and girls is provided, demonstrating how to calculate the range and median. The tutorial concludes with interpreting data to make judgments about performance, suggesting that girls performed better in the test.

What is the purpose of using a double stem-and-leaf plot?

• To compare three sets of data

• To display data in a chronological order

• To compare two sets of data on one graph

• To calculate the mean of the data

What could the two sides of a double stem-and-leaf plot represent?

• Different species in a study

• Different geographical locations

• Different temperature readings

• Different classes or categories

What was the highest score in the test?

• 6

• 29

• 35

• 24

What was the range of scores in the test?

• 6

• 24

• 35

• 29

How do you find the median score in a set of data?

• By adding all scores and dividing by the number of scores

• By finding the middle score when data is ordered

• By averaging the highest and lowest scores

• By finding the most frequent score

What was the median score for the girls in the test?

• 6

• 29

• 35

• 24

Which group had a higher cluster of scores in the test?

• Both scored the same

• Data is inconclusive

• Boys

• Girls

Based on the test scores, which group performed better?

• Cannot determine from the data

• Girls

• Boys

• Performance was equal