A carton of 6 batteries contains 2 that are defective and 4 that are good.
If we select 3 batteries at random form this carton, what is the probability that the sample contains exactly 1 defectivebattery?
Three defective electric toothbrushes were accidentally shipped to a drugstore by Cleanbrush Products along with 17 nondefective ones.
a.) What is the probability the first two electric toothbrushes sold will be returned to the drugstore because they are defective?
b.) What is the probability the first two electric toot
A bin contains seven parts. The probability that any part in the bin is defective is 3.5E-3. If one part is selected at random from the bin, what is the probability that it is defective? Please explain equation used and steps to solve the problem.
In a production run of 40 of a particular model of radiation detector, there are four which have defective circuits. If a sample of three of these is chosen without replacement, what is the probability that all three will be defective?
In a shipment of 15 room air conditioners, there are 3 with defective thermostats. Two air conditioners will be selected at random and inspected one after another. Find the probability that
(a) The first is defective.
(b) The first is defective and the second is good.
(c) Both are defective.
(d) The sec
1. A wire of resistance 5.0 ohm is connected to a battery whose emf is 2.0V and whose potential resistance is 1.0 ohm. In 2.0min, how much energy is (a) transferred from chemical form in the battery, (b) dissipated as thermal energy in the wire, and (c) dissipated as thermal energy in the battery?
2.The starting motor of a ca
A) In a (poorly run) widget factory, it is known that 25% of all products off the line will be defective. A random sample of 5 widgets is taken on a certain day. What is the probability that all of the widgets are defective? What is the probability that none are defective?
B) A coin is flipped 5 times in a row. What is t
I have a probability exercise I don't know how to resolve -
Three defective electric toothbrushes were accidentally shipped to a drug store called Clean-brush products along with 17 non-defective ones.
a. What is the probability the first two electric toothbrushes sold will be returned to the drugstore because they are def
There are 10 rolls of film in a box and 3 are defective. Two rolls are to be selected, one after the other. What is the probability of selecting a defective roll followed by another defective roll?
1/2, or 0.50
1/4, or 0.25
1/120, or about 0.0083
1/15, or about 0.07