Answer Happy

In 2015, the average cost for basic utilities (electricity, heating, water and garbage) in a 2 bedroom apartment in Adelaide was $214 with a standard deviation of $38 per month. Assuming these costs are normally distributed, find the probability that the basic utility cost for a randomly selected 2 bedroom apartment in Adelaide in 2015 was between $150 and $255 per month. Select one: O a. none of these options O b. 0.8136 O c. 0.8599 O d. 0.1866 e. 0.9535

a In 2015, the average cost for basic utilities (electricity, heating, water and garbage) in a 2 bedroom apartment in Melbourne was $172 with a standard deviation of $27 per month. Assuming these costs are normally distributed, find the monthly cost of basic utilities for a two bedroom apartment in Melbourne which is on the 70th percentile of this distribution. Select one: a. $186.04 O b. $190.90 C. $157.96 O d. $180.10 e. none of these options