compare Males to Females on smoking behavior.
Smoke tobacco cigarettes per day:
Part 2:
Write two paragraphs compare Males to Females on smoking behavior. Compare Mean, Variance, and Standard deviation and what the number tell us?
HW:
Smoke tobacco cigarettes per day:
Populations:
Males 36 38 38 38 40
Females 30 30 32 34 34
Part 1:
Males: Mean / Variance / Standard deviation
Mean:
µ = ∑x
N =
36+38+38+38+40
5 =
190
5 = 38
Variance:
σ2 = ∑(x−μ)2
N =
4+0+0+0+4
5 =
8
5 = 1.6
Standard deviation:
𝜎 = √𝜎2 = √1.6 = 1.3
Females: Mean / Variance / Standard deviation
Mean:
µ = ∑x
N =
30+30+32+34+34
5 =
160
5 = 32
Variance:
σ2 = ∑(x−μ)2
N =
4+4+0+4+4
5 =
16
5 = 3.2
Standard deviation:
𝜎 = √𝜎2 = √3.2 = 1.8
Part 2:
Write two paragraphs compare males to females on smoking behavior. Compare Mean,
Variance, and Standard deviation and what the number tell us?