MATH SOLVE

3 months ago

Q:
# The dot plots below show the scores for a group of students for two rounds of a quiz: Two dot plots are shown one below the other. The title for the dot plot on the top is Round 1 and the title for the bottom plot is Round 2. Below the line for each dot plot is written Score. There are markings from 1 to 5 on the line at intervals of one. There are 2 dots above the mark 2, there are 3 dots above the mark 3, there are 2 dots above the mark 4 and there is 1 dot above the mark 5. For the bottom dot plot there are there are 4 dots above the mark 4 and there are 4 dots above the mark 5. Which of the following inferences can be made using the dot plots? There is no overlap between the data. Round 2 scores are lower than round 1 scores. Round 1 scores are higher than round 2 scores. The range of round 1 is greater than the round 2 range.

Accepted Solution

A:

Answer:The inference that can be made using the dot plot is: The range of round 1 is greater than the round 2 range.Step-by-step explanation:Round 1:Score Frequency 1 0 2 2 3 3 4 2 5 1Hence, the minimum score of Round 1 is: 2maximum score is: 5Hence, Range=Maximum value-Minimum score =5-2 =3Similarly, Round-2Score Frequency 1 0 2 0 3 0 4 4 5 4Hence, the minimum score of Round 1 is: 4maximum score is: 5Hence, Range=Maximum value-Minimum score =5-4 =1The scores of round 2 are higher than round-1.Since round 2 have a higher frequency for higher scores as compared to round-1.Hence, Range of round 1 is greater than the range of Round-2.