1.34)
b) the shape of the distribution is right skewed. Seven of the food oils have more omega
3 than omega 6. This distribution says that there is not enough omega 6 in the modern
food oils.
c) these
Brinn Card
Statistics Homework 1
1)
a) Laurie Abrams, Gordon Brown. Maria Cabrera and Miranda Ismael
b) It contains five variables
2) Quantitative: energy consumption, net capacity
Qualitative: brand
Stress and Coping
3/2/17
Stress in the US has increased 30% over the last 30 years
35% of Americans are chronically stressed this year
women are more stressed than men
top 10 reasons for stress
1. jo
1) Mean of x and y
2) Standard deviation of x and y
3) Make table of z scores z-x and z-y
ZX
1
2
n
Correlation
ZY
4) Inside table : x1- mean of x/ standard deviation of x and same for y
Scatter plot
barplot(table(PCTGRAD), main="Percent of on-Time High School Graduates
",col=c("gray","blue"),ylim=c(0,20),xlab="Percent of Graduates",cex.lab = 1.5)
2) Quantitative: energy consumption, net capacity
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Intro to Statistics
Homework 5
3/31/17
4.15) C- a lower reaction time would mean death comes faster
4.16) B- IQ- 103 and SPA is .05
4.17) A- there is a strong positive linear correlation
4.
Variables that help us cope
Benefits of moderate stress
o Meet daily challenges
o Motivation to meet goals
o Complete tasks efficiently
o Boosts memory
Burn out
o A stress related illness that is the
Types of Averages:
Median: The number which is in the middle
Ex. 2, 3, 4, 4, 4, 5, 6, 7, 7, 7, 8, 8, 9 the median would be 6
Mean: The standard mathematical average where the numbers/amounts added up
Normal Distributions: A type of probability distributions which states that a function
illustrates the probability that the event/thing will fall between two real numbers (nonimaginary numbers).
Brinn Card
Statistics Homework 1
1)
a) Laurie Abrams, Gordon Brown. Maria Cabrera and Miranda Ismael
b) It contains five variables
2) Quantitative: energy consumption, net capacity
Qualitative: brand