Step-by-step explanation:
We are told that for a large data set of a average student grades, the third quartile Q3 is found 78.5.
Since we know that third quartile represents the number such that 75% of the data is less than this number. Third quartile is the middle value between median and the highest value of a data set. Third quartile is also known as upper quartile. Third quartile splits lower 75% data from highest 25% of data.
Therefore, third quartile represents that 75% of student grades are less than 78.5 and 25% of students grades are greater than 78.5.
1,10 and 2,5,
those are the pairs
Answer:
-15
Step-by-step explanation:
Using the BODMAS ORDER..
6-6*4+3= 6 - 24 + 3 = 9 -24 = - 15
Answer:
2x
Step-by-step explanation:
x*1 is x
x/1 is also x
x+x=2x
Answer:
Step-by-step explanation:
3x - 18 = 8x - 9x - 21
3x - 18 = -x - 21
4x - 18 = -21
4x = -3
x = -3/4
answer is A
