AP Biology Chi-Squared Practice

Problems

(Set l)

The integration of analytical skills in the AP Biology course has provided a

new challenge for AP Biology teachers. In an attempt to facilitate student

mastery of unfamiliar skills have chosen to front-load analytical skills into

beginning of my course. My students will be assessed with a minimum

of 5 grid-in

on

each unit exam.

I have experienced extreme difficulties finding chi-squared problems that

are not all content specific, but still appropriate for the c«mse. In order to

implement the course long strategy I needed a bank of problems that students

could complete at any time in the course. I've decided to pass these problems I've

developed on to the AP Biology teachers who are experiencing the same struggle!

(O-E)2

Chi-Squared Formula: x

2

Critical Values:

Where: O Observed Result

E Expected Result

E •Sum of

Degrees

of

Freedom

SS

2 .040

3185

.429

5.752

level of

.004

.103

.352

080

.064

1005

2343

050

1.386

2.366

3.357

4.351

.20

3.22

usu

5.qq

7.29

.10

2.71

625

7.78

(P)

.05

3.84

5.qq

7.82

q.uq

107

002

7.82

9.84

167

13.39

.01

5.64

9.21

135

13.28

s.oq

0.83

13.82

s.27

18.47

20.52