Question

**A box contains 25 parts of which 3 are defective and 22 are non-defective. If two parts are selected WITH replacement, find the following probabilities;**

**P (both are defective) =****P ( exactly one is defective) =****P ( neither is defective) =**

Answer #2

answered by: anonymous

A box contains 4 defective and 2 good parts.
Two parts are selected from the box (without replacement), and it
is recorded whether the
selected part is defective or good.
The probability that the first selected part is defective and the
second selected part is good is
__________
The probability that exactly one good part is selected
is__________________
The probability that at least one defective part is selected is
_____________________

A box consists of 16 components, 6 of which are
defective.
(a)
Components are selected and tested one at a time, without
replacement, until a non-defective component is found. Let
X be the number of tests required. Find
P(X = 4).
(b)
Components are selected and tested, one at a time without
replacement, until two consecutive non defective
components are obtained. Let X be the number of tests
required. Find P(X = 5).

A lot of 101 semiconductor chips contains 25 that are
defective.
(a)
Two are selected, one at a time and without replacement from
the lot. Determine the probability that the second one is
defective.
(b)
Three are selected, one at a time and without replacement. Find
the probability that the first one is defective and the third one
is not defective.

Suppose that in an assortment of 25 calculators there are 5 with
defective switches. Draw with and without replacement. (Enter the
probabilities as fractions.)
(a) If one machine is selected at random, what is the
probability it has a defective switch? with replacement _____
without replacement ____
(b) If two machines are selected at random, what is the
probability that both have defective switches? with replacement ___
without replacement ____
(c) If three machines are selected at random, what is...

QUESTION 5- A factory produces pins of which 1.5% are
defective. The components are packed in boxes of 12. A box is
selected at random.
(1) n =
(2) p = (Round to four decimal places)
(3) q = (Round to four decimal places)
Find the following probabilities (Round ALL answers to four
decimal places):
4) The box contains exactly 6 defective pins
5) The box contains at least one defective pins
6) The box contains no more than two...

A tray of electronic components contains 22 components, 4 of
which are defective. If 4 components are selected, what is the
possibility of each of the following? (Round your answers to five
decimal places.)
(a) that all 4 are defective
(b) that 3 are defective and 1 is good
(c) that exactly 2 are defective
(d) that none are defective

A box contains one yellow, two red, and three green balls. Two
balls are randomly chosen without replacement. Define the following
events:
A:{ One of the balls is yellow }
B:{ At least one ball is red }
C:{ Both balls are green }
D:{ Both balls are of the same color }
Find the following conditional probabilities:
P(B\Ac)=
P(D\B)=

John is putting together a toy chest for his daughter. The toy
chest was shipped in a box. The box contains 12 parts, of which 3
parts are defective. Two parts are selected at random without
replacement.
a) Find the probability that both parts are defective.
b) Find the probability that both parts are not defective.
c) Find the probability that at least one part is defective.
Please show how you arrive at your answers.

A shipment of part contains 3 defective items and 7
non-defective items. If we randomly select 4 items for inspection,
what is the probability that we obtain at most one defective item
in the sample? Assume sampling without replacement.

3. A box contains eight defective and twelve good transistors.
If five transistors are drawn, with replacement, in succession,
find the probability of drawing at most three defective transistors
using the tables provided.
Pdf for formulas: http://docdro.id/HLm3Ta5

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