Rozicuparralie Rozicuparralie

14-12-2016
Mathematics

contestada

A box contains 12 transistors, 3 of which are defective. If 3 are selected at random, find the probability?
All are Defective =
None are defective=

Respuesta :

nobillionaireNobley nobillionaireNobley

16-12-2016

P(all are defective) = (3/12)^3 = (1/4)^3 = 1/64
P(none are defective) = (9/12)^3 = (3/4)^3 = 27/64

Answer Link

Otras preguntas

The difference between a number divided by 3 and 4 is 20.

As a clinical chemist in charge of the testing of blood samples. You are required to mix a solution of sodium chloride with water in the ratio of 2:5. =2:52/7 o

Describe an advantage of using dry ice to ship cardboard cartons of ice cream over long distances.

Find an equation of the line that satisfies the given conditions: through (1/2, − 2/3); perpendicular to the line 6x − 12y = 1

a pack of 12-8 ounce bottles of water costs $3.36.What is the unit cost per ounce of bottled water?$0.03 per ounce$0.04 per ounce$0.28 per bottle$0.42 per bottl

a^2=-42+13a solve by factoring ?

16.1 is what percent of 70

In reaching her destination, a backpacker walks with an average velocity of 1.22 m/s, due west. This average velocity results because she hikes for 6.44 km with

explain how to do this problem in steps and include answers as well

During a 3-hour storm, it snow 2.5 inches. Jacob said that it snowed an average of about 8 inches per hour. What is the error?