Question

A trucking company determined that the distance traveled per truck per year is normally
distributed, with a mean of 60 thousand miles and a standard deviation of 12 thousand
miles. Complete parts (a) through (d) below.
ed
or
a. What proportion of trucks can be expected to travel between 46 and 60 thousand miles
in a year?
The proportion of trucks that can be expected to travel between 46 and 60 thousand miles
in a year is a
(Round to four decimal places as needed.)
on

Answer 1

Resposta:

Uma empresa de transporte rodoviário determinou que a distância percorrida por caminhão por ano é normalmente

distribuídas, com média de 60 mil milhas e desvio padrão de 12 mil

milhas. Partes completas (a)