The annual ground coffee expenditures for households are approximately normally distributed with a mean of $48.68 and a
Posted: Thu Jan 13, 2022 5:46 am
The annual ground coffee expenditures for households are approximately normally distributed with a mean of $48.68 and a standard deviation of $11.00 a. Find the probability that a household spent less than $30.00 b. Find the probability that a household spent more than $55.00 c. What proportion of the households spent between $25.00 and $35.00? d. 90% of the households spent less than what amount?