Question 349:

Asked on August 15, 2008

Tags: Z-Score

1

Answer:

No answer provided yet.

Calculate the z-score first, so (1000-1200)/250 = -.8 then lookup this area using the z-score to percentile calculator and select 1-sided area since the question is asking a less than question. You should get a proportion of .218 or about 22% of accounts have less than $1000.