Sasha S.
asked • 10/13/19How do I find something that is 1.96 Standard Deviations below the mean?
A consumer is investigating the cost of car insurance finds out that in her area, the ave. cost/yr is $867 with a standard deviation of $172. Find the cost that is 1.96 STD below the mean.
I guess all I'm really having trouble is finding the formula.
More
1 Expert Answer
Carlos M. answered • 10/15/19
Tutor
New to Wyzant
Professional Data Scientist and Math fan.
Literally just substract it from the mean.
Mean - 1.96*SD = $867 - (1.95*$172)
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.
Stephen H.
10/13/19