...
P
1
2
3
4
5
6
7
8
9
10
...
0.995
0.000039
0.0100
0.0717
0.2070
0.4118
0.6757
0.9893
1.3444
1.7349
2.1558
...
0.99
0.0002
0.0201
0.1148
0.2971
0.5543
0.8721
1.2390
1.6465
2.0879
2.5582
...
0.975
0.0010
0.0506
0.2158
0.4844
0.8312
1.2373
1.6899
2.1797
2.7004
3.2470
...
0.95
0.0039
0.1026
0.3518
0.7107
1.1455
1.6354
2.1673
2.7326
3.3251
3.9403
...
0.05
3.8415
5.9915
7.8147
9.4877
11.0705
12.5916
14.0671
15.5073
16.9190
18.3070
...
0.025
5.0239
7.3778
9.3484
11.1433
12.8325
14.4494
16.0128
17.5345
19.0228
20.4832
...
0.01
6.6349
9.2104
11.3449
13.2767
15.0863
16.8119
18.4753
20.0902
21.6660
23.2093
...
0.005
7.8794
10.5965
12.8381
14.8602
16.7496
18.5475
20.2777
21.9549
23.5893
25.1881
What is this
symbol?
That is chi-square.
Chi is a Grk leer
that lks a bit like
our leer X.
Oh, so this is what
we were talking
about.
Here is the
table.
Table of chi-square distribution
It lks similar
to the table of
standard normal
distribution.
It does, but it’s
a bit dierent.
Degrs
Of Frdom
Let's Obtain the Probability 103
With the table of
standard normal
distribution,
you provide the
X-crdinate,
and it tes you
the aociated
probability.
It provided the
probability
(= area = ratio)
This
value!
With the table of chi-
square distribution,
you provide the
probability, and it tes
you the aociated
X-crdinate.
I am geing
confused...!
Calm down!
Let’s find out what the
value of χ² is in a case
in which the degr
of frdom is 1 and
p is 0.05.
The line for 1
and the row for
0.05 Cro at...
3.8415.
104 Chapter 5
*
* Table of
chi-square
distribution
*Click!
You can kp the
table we used
today. Use it for
reviewing.
Yes, I wi.
Thank you.
We, that’s
a for
today.
Gd-b...
Oh! He won that
prize...I can’t believe
that he reay
responded.
*
Let's Obtain the Probability 105

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