Answer:
Question 6: 45 students scored between 21 and 40
Question 7: 20 students passed
Question 8: 47 students failed
Question 9: 12 students scored between 51 and 70
Question 10: 84 students scored below a 61
Step-by-step explanation:
Question 6:
We'd find the number students scored between 21 and 40 by adding
Add the 21-30 and 31-40 scores:
24 + 21 = 45
Question 7:
The missing score set is 51-60
We'd find the missing frequency value by adding all of the values together and subtracting by 88.
88 - 80 = 8
To find the number of students that passed the lab we'd add all scores starting from 41:
8 + 8 + 4 = 20
Question 8:
To find the number of students that failed the lab we'd add all scores starting from 30:
24 + 18 + 5 = 47
Question 9:
We'd add all scores from 51 to 70:
8 + 4 = 12
Question 10:
We'd add all the scores less than 61:
8 + 8 + 21 + 24 + 18 + 5 = 84
or we could subtract the total by 4
88 - 4 = 84
