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
ale4655 [162]
3 years ago
13

A quality control engineer tests the quality of produced computers. Suppose that 5% of computers have defects and defects occur

independently of each other. I need to find the probability that the engineer has to test at least 5 computers in order to find 2 defective ones.
I thought of it and came up with a solution though I'm not sure whether it's correct or not.

The probability of finding 2 defective is p=0.05∗0.05=0.025 P(T≥5)=1−[P(T=4)+P(T=3)+(T=2)]=1−[0.025∗(0.975)3+0.025∗(0.975)2+0.025∗(0.975)1]=1−[0.025∗0.975(1+0.975+(0.975)2)=0.9300442
Mathematics
1 answer:
gogolik [260]3 years ago
7 0

Answer:

*(0.168) 1*.75-9386

2865

You might be interested in
Help i need to know this quickly please
ivann1987 [24]

Answer:

Abc is the whole explanation.

5 0
2 years ago
A study investigated the effectiveness of meditation training in reducing trait anxiety. The study evaluated subjects trait anxi
Setler79 [48]

Answer:

The 99% confidence interval for the population mean reduction in anxiety was (1.2, 8.6).

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 27 - 1 = 26

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 26 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 2.7787.

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.7787\frac{6.9}{\sqrt{27}} = 3.7

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 4.9 - 3.7 = 1.2.

The upper end of the interval is the sample mean added to M. So it is 4.9 + 3.7 = 8.6.

The 99% confidence interval for the population mean reduction in anxiety was (1.2, 8.6).

6 0
2 years ago
Can I get another answer please ?
gavmur [86]
G(x) = x^2 + 2x + 6
g(x) = x^2 + 2x + 1 + 5
g(x) = (x+1)^2  + 5

so
f(x) = x^2 to g(x) = (x+1)^2  + 5
shifted to the left 1 unit and up 5 units

answer is A. left 1 unit and up 5 units
4 0
3 years ago
T=m-n for n for the final answer
Snezhnost [94]

Answer:n=-t+m

Step-by-step explanation:

6 0
2 years ago
Pls Help!!<br> What is the slope of g(x) = 4x +3
soldi70 [24.7K]

Answer:

4

Step-by-step explanation:

Hope this helps. Please give brainliest.

3 0
3 years ago
Other questions:
  • Simplify: <br><br> A. 12x<br> B. 8√ 6x <br> C. 8x2√ 6 <br> D. 2x2√ 2
    15·2 answers
  • 32546455 rounded to the nearest hundred
    8·2 answers
  • Simplify y^-3 <br><br> a.3/y<br> b.1/y^3<br> c.-3y<br> d.-1/y^3
    13·1 answer
  • How do I solve this? And what's the answer.. I'm so lost.
    12·1 answer
  • Evaluate ab+c for a=2 b=3 and c=4 <br><br> A 9<br> B10<br> C27
    14·2 answers
  • Four consecutive even integers add up to 60. What is the smallest of the four numbers?
    8·1 answer
  • 3. Write an expression to show h decreased by 13.​
    7·1 answer
  • A shopkeeper bought Rice cooker for Rs. 5000 and sold it to a customer for Rs. 5,085 with 13% VAT.
    10·2 answers
  • 10. Does the mapping represent a function?
    14·1 answer
  • how do I put -1.2 on a number line?how do I put -3.25 on a number line?how do I put 0.5 on a number line?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!