Sign In Sign Up Ask an AI advisor
robert7248
robert7248
09.02.2021 • 
Mathematics

The mean and standard deviation of the daily high temperatures were calculated in three cities for the month of September 2018. The z-score for the high temperature on September 19 for each city, relative to that city’s mean, is given.

Tempe, AZ: –2.94
Ankeny, IA: 0.45
Lubec, ME: –0.98
Which statements correctly compare the z-scores? Choose three correct answers.

The high temperature on September 19 in Tempe was the most abnormal.
The high temperature in Tempe on September 19 was the coldest of the cities.
The high temperature in Lubec on September 19 was the warmest of the cities.
Only Ankeny’s high temperature was warmer than the mean; Tempe and Lubec’s high temperatures were colder than the mean.
The high temperature on September 19 in Ankeny was the closest to the mean.

Solved
Show answers

Ask an AI advisor a question

I want advice