Assignment 4

Instreuction :

1. From a table note that the data has five class interval, the sum of all data frequency is equal to 100 and the sum of

all frequency before median equal to 20. If the frequency of the median class equal to 10 and the bottom edge of

the median class is 39.5, calculate the median of the data

2. The mean of 8, 11, 6, 14, x and 13 is 66. Find the value of the observation x

3. The mean of 6, 8, x + 2, 10, 2x – 1, and 2 is 9. Find the value of x and also the value of the observation in the data.

4. Given distribution of data:

Class Frequency
0 – 11 9
11 – 22 17
22 – 33 28
33 – 44 26
44 – 55 15
55 – 66 8
Your task:
a. calculate mean, median, mode

b. Draw graph: Histogram, Polygon

5. A pair of dice is rolled numerous times. The sum of the dice, as well as the frequency, is recorded. Calculate the

mean, median, and mode for the results.k

Keteragan :

saya sudH mengerjakan assignment 4

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