The document contains a frequency distribution table with intervals, frequencies, and cumulative frequencies. It also lists additional computations needed to find the mean, median, mode, variance, standard deviation, and coefficient of variation. The solutions and answers section is blank.

2. INTERVALS FREQ. (fi) CM(Xi) CB(Li) CF(Fi)
100-104 2 102 99.5-104.5 2
105-109 8 107 104.5-109.5 10
110-114 18 112 109.5-114.5 28
115-119 13 117 114.5-119.5 41
120-124 7 122 119.5-124.5 48
125-129 1 127 124.5-129.5 49
130-134 1 132 129.5-134.5 50

3. Additional computations & details:
C= 5
k= 7
n= 50
n/2= 25
Find:
Mean. Median. Mode.
Variance. Standard
Deviation. Coefficient
Variation.
Following Fractile given:
P50
D3
Q 1
(fi) (Xi) Xi
2 fi(Xi)2 fi(Xi)
2 102 10404 20,808 204
8 107 11,449 91,592 856
18 112 12,544 225,792 2,016
13 117 13,689 177,957 1,521
7 122 14,884 104,188 854
1 127 16,129 16,129 127
1 132 17,424 17,424 132
653,890 5,710

4. Solutions and Answers
MEAN
MEDIAN
MODE

5. = 50(653,890)-(5,710)2
50(50-1)
= 32,694,500-
32,604,100
2,450
S2
g = 36.90
(100%)
(100%)
Variance StandardDeviation:
Coefficient Variation:
Sg =
=
= 6.07
C.V. =
=
= 5.32 ≈
5%

6. P50 D3

7. Q1