Which of these symbols doesn't belong,

Group of answer choices

s²

?

?

?

What is the average distance from the mean for each observation an interpretation for?

Group of answer choices

variance

mean

median

standard deviation

Which is a better measure of center for the variable Age?

Group of answer choices

Mean

Median

What percent of students sampled smoke (submit your answer in decimal form)?

X Record.Number Age Sex Aer Smk Caf Pr Rct Starting_Sal HRs.per.week Major

1 11201121 72 1253872358FIN

2 22181222 80 1504040762FIN

3 33211122 60 1003998855FIN

4 44181222 60 1604016661ACCT

5 55181122 53 1503958058ACCT

6 66181122 81 1403998257ACCT

Student_data_BUS$Smk

[1] 2 2 2 2 2 2 2 1 2 2 1 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 1 2 2 2 2 1 2 1 2 2 2 2 1 2 2 2 2 2 2 2 2 2 1 2 2 1 2 2 2 2 2 1 2 2 1 2 2 1 2 2 2 2 2 2 1 2 2 2 2 2 1 2 2 2 1 2 2 2 2

[95] 2 2 1 1 2 2 2 2 2 2 2 2 1 1 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

table(Smk)

Smk

12

24 140

4.What percent of students sampled don't do Aerobics (submit your answer in decimal form)?

Student_data_BUS$Aer

[1] 1 2 1 2 1 1 2 2 2 2 2 2 1 1 2 2 2 2 2 1 1 2 1 2 1 2 2 2 2 2 2 2 2 2 2 2 2 1 1 2 2 2 2 2 2 1 2 2 2 1 2 1 1 2 1 2 1 1 1 2 2 1 1 1 2 2 2 2 2 2 2 2 2 2 1 1 1 1 2 2 2 2 2 1 1 2 1 2 2 2 2 2 2 2

[95] 2 2 2 2 2 2 1 1 2 1 2 2 1 2 2 2 2 1 2 2 2 2 1 2 2 2 2 2 1 2 2 2 1 1 2 1 1 1 2 2 2 2 2 1 1 1 2 2 2 1 1 2 1 1 2 2 1 2 2 1 2 2 1 1 1 2 1 1 2 2

> table(Aer)

Aer

12

56 108

Which symbol below would best represent the variance in water temperature for a select sample of lakes?

Group of answer choices2,,2,