Please Help! Check My Answer!!
The following frequency distribution analyzes the scores on a math test. Find the class boundaries of scores interval 40-59
Scores| Number of Students
40-59| 2
60-75| 4
76-82| 6
83-94| 15
95-99| 5
39.5, 59.5
39.5, 58.5
40.5, 58.5
40.5, 59.5 (I think its this one)
Disagree, where would a score of 40 fall?
To find the class boundaries of a score interval, you can use the formula:
Lower Class Boundary = Lower Class Limit - 0.5
Upper Class Boundary = Upper Class Limit + 0.5
In this case, the score interval is 40-59.
To find the lower class boundary, you need to determine the lower class limit. The lower class limit is the minimum value in the interval, which is 40. Therefore, the lower class boundary is:
Lower Class Boundary = 40 - 0.5 = 39.5
To find the upper class boundary, you need to determine the upper class limit. The upper class limit is the maximum value in the interval, which is 59. Therefore, the upper class boundary is:
Upper Class Boundary = 59 + 0.5 = 59.5
So, the correct answer is 39.5, 59.5.