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This box plot shows information about the marks scored in a test.

Nobody gained exactly 30, 48 or 70 marks.
120 students gained less than 70 marks.
How many students gained more than 48 marks?

This box plot shows information about the marks scored in a test Nobody gained exactly 30 48 or 70 marks 120 students gained less than 70 marks How many student class=

Respuesta :

mona69420
since 120 students gained less than 70, and 70 is the upper quartile, 120 people are in the 75% of all the students so we need to find the total number of students.
we need to multiply 0.75 (75%) by something to get 120. which is 160 (the total number of all students).
and since 48 is the median score, find 50% of 160 which is 80!
hope this helps :)

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