Forgive me if this is wrong. I haven't done stat in a year, but comment if you need clarification!
According to the empirical rule, roughly 68% of the scores fall between z = -1 and z = 1
You can use a calculator to get a more approximate answer. If you have a TI calculator, you can use the "normalcdf" function to type in normalcdf(-1,1)
1km=0.62 miles
so multiply 1km by 5 to get 5km
multiply 0.62 by 5 to get km to miles
0.62 times 5=3.1
answe ris 3.1 miles
Twenty percent of $35 is 0.20($35) = $7. The discount is $7.
Here youuuu gooo hope this helpsss
