Answer:
use the explicit rule
Step-by-step explanation:
Answer:
C. t=$8, s=$12
Step-by-step explanation:
3($8)+4($12)=$72
4($8)+1($12)=$44
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 :)
42000000000000000
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