Answer: Option B: 67.0
Step-by-step explanation: To find Q3, we need to first find the median (Q2) of the dataset.
Arranging the data in order, we get:
49, 52, 52, 55, 55, 67, 74
The median (Q2) is the middle value of the dataset, which is 55.
Next, we need to find the median of the upper half of the dataset, which consists of the values:
55, 67, 74
The median of this upper half is 67.
Therefore, Q3 (the third quartile) is 67.0, option B.