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
dmitriy555 [2]
3 years ago
11

When the health department tested private wells in a county for two impurities commonly found in drinking water, it found that 1

0% of the wells had neither impurity, 90% had impurity A, and 20% had impurity B. (Obviously, some had both impurities.) If a well is randomly chosen from those in the county, find the probability distribution for Y, the number of impurities found in the well.

Mathematics
1 answer:
aleksley [76]3 years ago
6 0

Answer:

P(Y= 0) = 0.1

P(Y= 0) = 0.7

P(Y= 0) = 0.2

Step-by-step explanation:

Let Y be number of impurities that can be found in the well,

Let A denote the event that impurity A is randomly found in the well

Here Y can have three values i.e 0 , 1 and 2

✓It will take take the value of 0 when there is no impurity found in the well

✓It will take the value of 1 when when exactly one impurity vis found in the well

✓It will take the value of 2 when when both impurities vis found in the well

CHECK THE ATTACHMENT FOR DETAILED EXPLATION

You might be interested in
Anybody know the answer?
mixas84 [53]
In a circle, the measure of an inscribed angle is half the measure of the intercepted arc ⇒ x = 40/2 = 20°
8 0
3 years ago
What is the area of the trapezoid?<br> A) 176 cm^2<br> B)192 cm^2<br> C)208 cm^2<br> D)224 cm^2
LenKa [72]

Answer:

a

Step-by-step explanation:

.

3 0
3 years ago
I will make you brainlliest whoever answers this right and will give you points Please help me i am having a hard time
frutty [35]

14 + (-8) / 2 x -3

Follow order of operations: divide and multiply from left to right:

-8/2 = -4 x -3 = 12

Now you have 14 + 12

The answer is 26

4 0
3 years ago
Read 2 more answers
Which equation below is a direct variation?
masya89 [10]
Direct variation is of the form y = kx where k is a constant

So its A
5 0
3 years ago
Study the following data set.
nikdorinn [45]

Answer:

22

Step-by-step explanation:

Arrange the data points from smallest to largest.

If the number of data points is odd, the median is the middle data point in the list.

If the number of data points is even, the median is the average of the two middle data points in the list.

6 0
3 years ago
Other questions:
  • A local grocer cut his marketing budget by 41% last year. He spent only $650 on marketing this year and is happy with his decisi
    11·1 answer
  • A publisher of a newsmagazine has found through past experience that 60% of subscribers renew their subscriptions. In a random s
    13·1 answer
  • The price of silver has increased by 25% per year from 2000. In the year 2000,Harry bought a silver bowl for $170. Write a funct
    9·2 answers
  • Solve this system by ELIMINATION!<br>9x-12y=15<br> -4x+4y=0​
    13·1 answer
  • Sketch the graph of each line.<br><br> This is due tonight please help &lt;3
    5·1 answer
  • A ball is thrown into the air with an upward velocity of 80 feet per second. The function
    8·1 answer
  • Which quanity is proportional to 5/25
    11·1 answer
  • PLEASE HELP MEEEEE!!!!!
    10·2 answers
  • Line graphs are useful for representing ____.
    6·1 answer
  • Emma and luis solve the equation 6(x+2)=42-4x using different steps
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!