Question

module 2 quiz descriptive statistics score: 40/190 answered: 4/19 question 5 ages number of students 15 - 18 10 19 - 22 3 23 - 26 9 27 - 30 4 31 - 34 10 35 - 38 5 based on the frequency distribution above, find the cumulative frequency for the class with lower class limit 31 cumulative frequency = give your answer rounded to one decimal place question help: video check answer

Explanation:

Step1: Define cumulative frequency

Cumulative frequency is the sum of frequencies of all classes below and including the current class.

Step2: Identify relevant classes

The classes with lower - class limits less than or equal to 31 are 15 - 18, 19 - 22, 23 - 26, 27 - 30 and 31 - 34.

Step3: Sum up the frequencies

The frequencies of these classes are 10, 3, 9, 4 and 10 respectively.
\[10 + 3+9 + 4+10=36\]

Answer:

36.0