11

Given the absolute cumulative frequency table:

Edad Fi
[0, 2) 4
[2, 4) 11
[4, 6) 24
[6, 8) 34
[8, 10) 40

1. Calculate the arithmetic mean and standard deviation.

2. Calculate the difference between the values that are the 10 central ages?

3. Create the respective absolute cumulative frequency polygon.


  xi fi Fi xi · fi xi2 · fi
[0, 2) 1 4 4 4 4
[2, 4) 3 7 11 21 63
[4, 6) 5 13 24 65 325
[6, 8) 7 10 34 70 490
[8, 10) 9 6 40 54 486
    40   214 1368

Mean and Standard Deviation

Statistical Operations

Statistical Operations

2

Statistical Operations

The 10 students represent 25% of the central distribution.

Central Distribution Diagram

Find: P37.5 y P62.5.

Statistical Operations

Statistical Operations

The 10 central ages are in the interval: [4.61, 6.2] .

Frequency Polygon

Frequency Polygon