A class of eleven people received the test scores shown below, sorted by score.
32 51 69 73 74 75 82 89 93 98 100
What is the value of the lower (first) quartile?
Question 9 options:
68
69
75
93
To find the lower quartile, we need to find the median of the first half of the data. In this case, the lower quartile would be the median of the first 5 scores.
The first 5 scores are: 32, 51, 69, 73, 74.
To find the median of these 5 scores, we take the average of the middle two scores: (69 + 73) / 2 = 71.
Therefore, the value of the lower (first) quartile is 71.