Bio Lab Flashcards
What are descriptive characteristics in Biostatistics?
- mean
- median
- standard deviation
Which descriptive characteristics will be used in the results section?
mean and standard deviation
Which descriptive characteristics will be used in the graph?
mean and standard error
What is a discrete variable?
variable that is categorical
What is the continuous variable?
variable that range
the null hypothesis (HO)
opposite from hypothesis
What variable goes on the x-axis?
the independent variable
if p>0.05 we ____________
support H0 and reject H1
if p<0.05 we _____________
reject H0 and support H1
hypothesis are written in
If then Statements
What is the difference between a prediction and a hypothesis?
a hypothesis is more direct and can lead to more predictions
How do you write a CSE
author, year, article title, journal title, volume number, issue number, pages Au+YAt+J+VIP
If you think you know the outcome use a
one tailed
If youre unsure of the outcome use a
two tailed
Independent V
V that is changed. “I” change it (light)
Dependent V
V that is being tested (if moth is attracted to light)
what does DRY MIX stand for?
D-Dpendent V
R-responding V
Y-y axis
M-Manipulated V
I-Independent V
X-x axis
Write a results statement (shells and weight in Gen bio 2)
In our classroom the average weight (thing studied) of shells A (weight+/- SD)was (what happened) higher than the average weight of shells b (+/- SD) in general bio 2. (t value, #shells a, #shells b, p value)
what is the purpose of descriptive statistics?
summarises data–doesn’t tell you if it is significant or not
what is the purpose of inferential statistics?
determine if 2 populations are significantly different or not
what is the hardy-weinberg equation for genotype frequency?
p2+2 pq+q2=1
what is the hardy-weinberg equation for allele frequency?
p+q=1
