MATH 1280 Introduction to Statistics Examination

MATH 1280 Introduction to
Statistics Examination

◉ What is the relative frequency of direct hits that were category 2
hurricanes?
Select one:
a.0.2637
b.0.7363
c.0.2601
d.Not enough information to calculate. Answer: a.0.2637


◉ The relative frequency of direct hits that were AT LEAST a category
3 storm is Answer. (The numerical answer that you provide should be of
the form "0.xxxx", with four digits to the right of the zero.) Answer:
0.337


◉ The relative frequency that flossed 6 times per week is: Answer: 0.05


◉ The relative frequency that flossed at least once a week is: Answer:
0.55


◉ The sample size is:
Select one:
a.8

, b.9
c.72
d.Not enough information to tell. Answer: c.72


◉ The frequency of production series where there are 4 malfunctioning
products is:
Select one:
a.57
b.9
c.16
d.Not enough information to calculate. Answer: c.16


◉ The frequency of production series where there are less than 7
malfunctioning products is:
Select one:
a.70
b.71
c.72
d.Not enough information to calculate. Answer: a.70


◉ The number of variables is: Answer: 7


◉ The type of the variable "id" is:
Select one: