The upper quartile of a set of data is represented by which of the following? the median of the upper quarter of the data. the mode of the upper half of the data. the median of the upper half of the data. the mode of the upper quarter of the data.

upper quarter of the data.

Step-by-step explanation:

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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