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
svp [43]
3 years ago
15

It is known that 10% of the calculators shipped from a particular factory are defective. In a random sample of ten calculators,

the probability of no more than one defect is:______
Mathematics
1 answer:
umka2103 [35]3 years ago
5 0

Answer:

0.7361

Step-by-step explanation:

In this question we have

number to be 10

Then we have a probability of 10% = 0.10

We have q = 1-p

= 1-0.10 = 0.90

Then the probability of not more than 1 being defective:

P(x=0) + p(x= 1)

(10C0 x 0.1⁰ x 0.9^10-0)+(10C1 x 0.1¹ x 0.9^10-1)

= 1 x1 x0.3487 + 10 x 0.1 x 0.3874

= 0.3487 + 0.3874

= 0.7361

This is the the required probability and this answers the question.

probability = 10 percent = 0.1

q= 1- 10percent = 90% = 0.9

n = 4

To get the required probabiltiy for this question is

P(not greater than one is defective )=P(x=0)+P(x=1)

= 4C0x(0.1)⁰x(0.9)⁴+4C1x(0.1)¹x(0.9)³

= 0.9477

The required probability is 0.9477

You might be interested in
Evaluate.
lys-0071 [83]

Answer:

  361/900

Step-by-step explanation:

  \left(-\dfrac{1}{6}+0.6\left(-\dfrac{1}{3}\right)+1\right)^2=\left(-\dfrac{1}{6}-0.2+1\right)^2\\\\=\left(1-\left(\dfrac{1}{6}+\dfrac{1}{5}\right)\right)^2=\left(1-\dfrac{5+6}{6\cdot5}\right)^2=\left(\dfrac{19}{30}\right)^2=\boxed{\dfrac{361}{900}}

8 0
2 years ago
A graduated commission employee makes 3.5% interest on the first $50,000 in sales and 6.5% interest on all sales over $50,000. W
masha68 [24]

Answer:

7th Grade ELAR Snapshot

Step-by-step explanation:

6 0
3 years ago
What are the solutions to the equation (x + 2)^2 = 49?
Mekhanik [1.2K]

Answer:

X= 5, -9

Step-by-step explanation:

(X+2)² =49

Expand the bracket,


(X+2) (X+2)= 49

Apply the distributive property;

X(X+2) +2 (X+2) =49

X²+2X+2X+4=49

X²+4X+4=49

Move 49 to the left side of the equation;

X²+4X+4-49=0

X²+4X-45=0

Apply Factorisation method;

Consider the form

a²+bx+c=0  

Find two numbers whose sum is equal to b and whose product is equal to c.
Comparing with our equation;

B =4 and C =45

We can use 9 and -5, this is because ;

9+(-5)=4 and 9*(-5)= 45.

Replace X +4X-45=0 with (X-5) (X+9)=0

Therefore;

X-5=0

X+9=0

Moving to the left side of the equation;

Therefore X= 5 and -9

8 0
3 years ago
Read 2 more answers
Estimate the sum by rounding each number to the nearest hundred first
Natasha2012 [34]
500+600+900+400+600= 3000
4 0
3 years ago
sketch and label the sampling distribution for the sample proportion of games containing a "big bang", according to the Central
Daniel [21]

Answer:  D

Step-by-step explanation:

Sketch and label the sampling distribution for the sample proportion of games containing a big bang, according to the Central Limit Theorem, assuming that the grandfather's null hypothesis is true. Also check whether or not the conditions hold for the CLT to apply. Of the 95 games in our sample, 47 contained a big bang.

8 0
3 years ago
Other questions:
  • Which mathematical terms originated from the Arabic mathematician al-Khwarizmi
    11·2 answers
  • Hayley babysat for two hours each night for 10 nights.She earns a total of $300 babysitting.Hayley wants to calculate her hour r
    13·2 answers
  • in a quadrilateral, two of the angles each have a measure of 40°, and the measure of a third angle is 130°. What is the measure
    13·1 answer
  • The star aldebaran, visible from earth, lies about 65 light years away from us. What is the minimum amount of time that would be
    13·1 answer
  • Harry collected green balls in a bag he drew two balls , of the five balls ,out of the bag. is this a random sample of windows i
    7·1 answer
  • Write 8/5 in a mixed number
    11·2 answers
  • I need the answer ASAP :/
    8·2 answers
  • Hiii please help i’ll give brainliest if you give a correct answer tysm!
    9·1 answer
  • Andre says that 534+ 214= 712 because 748= 712. Identify his mistake.
    8·2 answers
  • -9 - 5 this would help me a lot please
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!