Question

The speed with which utility companies can resolve problems is very important. GTC, the Georgetown Telephone
Company, reports they can resolve customer problems the same day they are reported in 70 percent of the cases.
Suppose the 15 cases reported today are representative of all complaints.
a) What is the probability 10 of the problems can be resolved today?
b) What is the probability 9 or 12 of the problems can be resolved today?
c) What is the probability more than 10 of the problems can be resolved today?​

Answer 1

Respuesta:

Explicación paso a paso:

en elcaso del punto b solo es reemplazar y poner p(x=9) + p(x=12)=