Math 3339 final questions n answers
A+ already passed
r close to 1 - correct answer ✔✔strong linear relationship
r close to 0 - correct answer ✔✔no linear relationship at 0. near 0 is weak linear relationship
In the regression equation y = b0 + b1x, identify what b0 and b1 represent. Which of
these will best explain the relationship between x and y - correct answer ✔✔bo represents the
y intercept. and b1 represents the slope of the line. the slope will best explain the relationship
because for every 1 x goes up then y goes up b1.
conditional probability - correct answer ✔✔P(a&b)/P(b)
to find a zscore corresponding to a percentile - correct answer ✔✔qnorm(.percentile)
standard error - correct answer ✔✔sqrt(p(1-p)/n)
pvalue for t test stastic - correct answer ✔✔qt(t value,df)
verify that its a binomial experiment - correct answer ✔✔-success or fail only
-fixed # of trials
-outcomes are independent
r studio commands for binomial experiments
A+ already passed
r close to 1 - correct answer ✔✔strong linear relationship
r close to 0 - correct answer ✔✔no linear relationship at 0. near 0 is weak linear relationship
In the regression equation y = b0 + b1x, identify what b0 and b1 represent. Which of
these will best explain the relationship between x and y - correct answer ✔✔bo represents the
y intercept. and b1 represents the slope of the line. the slope will best explain the relationship
because for every 1 x goes up then y goes up b1.
conditional probability - correct answer ✔✔P(a&b)/P(b)
to find a zscore corresponding to a percentile - correct answer ✔✔qnorm(.percentile)
standard error - correct answer ✔✔sqrt(p(1-p)/n)
pvalue for t test stastic - correct answer ✔✔qt(t value,df)
verify that its a binomial experiment - correct answer ✔✔-success or fail only
-fixed # of trials
-outcomes are independent
r studio commands for binomial experiments
