Claire's backyard is in shape of a rectangle and has a length of 19.5 feet. it cost her $945 to fence in the yard. if fencing costs $15 per foot, what is the width of claire's backyard?

68.65%

Step-by-step explanation:

Given : Paula Pidcoe discovers that the average miscellaneous expense is $65.00 with a standard deviation of $18.00.

i.e. and

We assume that the miscellaneous expenses follows normal distribution.

Let x denotes the miscellaneous expenses .

Then, the probability that  her expenses fall between $54.20 and $86.60 will be :

Hence, she would expect 68.65% of her expenses in this category to fall between $54.20 and $86.60 .