Workshop Statistics: Discovery with Data and Fathom

Topic 1: Data and Variables

Activity 1-1: Word Lengths

Answers will vary from student to student.
 

Activity 1-2: Types of Variables

(a) (b) Number of students in the class does vary from class to class so with class as the observational unit, the variable is quantitative
(c) (d) "letters per word" measures a characteristic of each word and varies from word to word so the words are the observational units
(e) categorical
(f) with each state you will give a yes/no answers, so binary
 

Activity 1-3: Penny Thoughts

Anyswers will vary from class to class.
 

Activity 1-4: Value of Statistics

(a) - (d) Answers will vary from class to class.
(e) Probable order: C, D, E, A, B, but remember to be able to justify your choices as well.
 

Activity 1-5: Students' Travels

Answers will vary from class to class.
 

Activity 1-6: Parents' Ages

(a) They seem similar in shape: a big lump and trailing off to the right. The mother ages seem to be a little bit smaller, peaking around 20, than the father’s ages, peaking around 25.
(b) Maybe 20 for the mothers and 25 for the fathers. Females seem to have their first child at a younger age than males.