1/ Explainthe difference between qualitative and quantitative variables. Give an example of qualitative and quantitative var
Qualitative variables: The subjects are obsevable, but they are non-numeric
1
a
b
c
d
e
a)
b)
c)
a
b
c
d
nCr = n!/ (r! . (n-r)!) =
15C10 = 15! / (10! . (15-10)!)= 3003
2
0.5
P(>200)=50/500=
0.1
0-20 and 20-50 are mutually exclusive
1
P(<50) = P(0-20) + P(20-50) = 2/5 + 1/5 =
Henry Dannis
Chapter 13
1/
A group of statistical techniques used to measure the relationship between 2 variables
2/
Provide us with a quantitative measure of the strenght and direction of the relatio
Vinh Nguyen
1) Current ratio = Current Assets / Current Liabilities = 101466/37417 =
2.712
2) Acid-test ratio = (Cash + Short-term Investment + Current Receivables) / Current Liabilities = (77022 + 17