1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anastaziya [24]
3 years ago
13

A shipment of 24 electric typewriters are rejected if 3 are checked for defects and at least 1 is found to be defective. Find th

e probability that the shipment will be returned if there are actually 6 typewriters that are defective.
Mathematics
1 answer:
Maslowich3 years ago
8 0

Answer:

You keep them if you test 3 and all pass.

There are 18 good ones and 6 bad (making 24)

Chance of first passing is 18/24

If it passes, there are now one less good and one less total.

Chance of second passing is 17/23

If it passes, there are now one less good and one less total.

Chance of second passing is 16/22

Total is (16 x 17 x 18) / (22 x 23 x 24) = about 0.4 (0.403162055 is you really want to know).

So probability all are ok is 0.4

Thus probability you find at least one bad one is 0.6

Hope this helps you out!

You might be interested in
D ujhyjrbv6trvb5yt46y5thr
avanturin [10]

Answer:

The answer is e

Step-by-step explanation:

6 0
3 years ago
Is there any systematic tendency for part-time college faculty to hold their students to different standards than do full-time f
alexandr1967 [171]

Answer:

H0 : μ1 - μ2 = 0

H1 : μ1 - μ2 ≠ 0

-1. 34

0.1837

Step-by-step explanation:

Full time :

n1 = 125

x1 = 2.7386

s1 = 0.65342

Part time :

n2 = 88

x2 = 2.8439

s2 = 0.49241

H0 : μ1 - μ2 = 0

H1 : μ1 - μ2 ≠ 0

Test statistic :

The test statistic :

(x1 - x2) / sqrt[(s1²/n1 + s2²/n2)]

(2.7386 - 2.8439) / sqrt[(0.65342²/125 + 0.49241²/88)]

−0.1053 / sqrt(0.0034156615712 + 0.0027553)

-0.1053 /0.0785554

= - 1.34

Test statistic = - 1.34

The Pvalue :

Using df = smaller n - 1 = 88 - 1 = 87

Pvalue from test statistic score ;

Pvalue = 0.1837

Pvalue > α ; We fail to reject the null and conclude that the GPA does not differ.

At α = 0.01 ; the result is insignificant

6 0
2 years ago
You earn $15 per soccer game you officiate. Your total earnings depend on the amount of soccer
soldier1979 [14.2K]

A: the independent variable is the number of soccer games you officiate

B: the dependent variable is your earnings

C: e = earnings; s = soccer games

e = 15s

5 0
3 years ago
Solve: −4d − 6 = −10
Stels [109]

Answer:

hi

Step-by-step explanation:

- 4d - 6 =  - 10 \\  - 4d =  - 10 + 6 \\  - 4d =  - 4 \\ d = 1

i think so…

8 0
3 years ago
Read 2 more answers
If BE ≅ LU in quadrilateral BLUE shown, which additional information would be sufficient to prove quadrilateral BLUE is a parall
goblinko [34]

Answer: Option A and option B would be sufficient to prove that BLUE is a parallelogram. The diagonals are congruent IS NOT ALWAYS TRUE about a parallelogram.

Step-by-step explanation: Please refer to the diagram attached for details. One of the properties of a parallelogram is that each pair of opposite sides are equal to each other. So lines BE and LU are parallel as shown by the arrows on both lines in the attached picture. Same applies to lines BL and EU. Line BE doesn’t have to be congruent to BL, but BE must be congruent to LU. Same applies to BL and EU. Also in a parallelogram, opposite sides are congruent, opposite angles are congruent (angle B = angle U and angle E = angle L) and opposite sides are parallel. The diagonals are NOT ALWAYS congruent. This is only possible if all four sides are of the same measurement. However if for instance, side BE does not equal BL, then the diagonals cannot be equal.

8 0
2 years ago
Other questions:
  • Which line segment is parallel to plane FGKJ?
    14·1 answer
  • Enter the decimal equivalent of 9/12
    7·1 answer
  • How would you find if these two triangles are congruent?
    7·1 answer
  • How do you use proportions to solve percent problems​
    7·1 answer
  • In the diagram below , tan theta =square root 3. What is the value of m?
    5·1 answer
  • Best explained and CORRECT answer gets brainliest.
    14·1 answer
  • Find the volume of a cone that is 17.3ft and 4.7ft
    13·1 answer
  • =4−13. Please. I need help
    15·1 answer
  • What is the area?<br> 3 in<br> 2 in<br> 4 in
    10·1 answer
  • Martin and Helen both are computer technicians and they repair all kind of computers. Martin makes $50 a day plus $25 per repair
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!