Directions: Read each item carefully. Choose the letter of the best answer.
1. Which of the following is the formula in finding the mean of grouped data? 41
A. & = X₁b + (4¹) { f C. F = E/Xm N 41+42 B. X = D. X = Xub + fm
2. What symbol is used to represent the size of the class interval?
A. c D. f B. i C. y
3. In a grouped data, in what class can the median be found?
A. mean class B. median class C. mode class D. range For numbers
4-5, please refer to the table below. O Scores No. of Students fXm Midpoints (Xm) Cumulative Frequency(cf) (f) 20-29 1 30-39 14 40-49 9 50-59 13 60-69 3 N=
4. What is the cumulative frequency of the modal class in the distribution?
A. 1 B. 14 C. 15 D. 24
5. What is the cumulative frequency of the median class in the distribution?
A. 24 B. 15 C. 14 D. 9
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Answer:
1: A
2: C
3: C
4: B
5: A
Step-by-step explanation: SANA PO MAKATULONG