Janice works at a cell phone company she wants to make a presentation to her team about the features of a new phone she makes scale drawing of the phone using a scale of 1 inch to 0.5 cm in length of the scale drawing is 28 inches and it’s width is 15 inches what are the actual dimensions of the phone

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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