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
Anarel [89]
3 years ago
9

n a rural area, only about 30% of the wells that are drilled find adequate water at a depth of 100 feet or less. A local man cla

ims to be able to find water by "dowsing"—using a forked stick to indicate where the well should be drilled. You check with 80 of his cus- tomers and find that 27 have wells less than 100 feet deep. What do you conclude about his claim?
Mathematics
1 answer:
enyata [817]3 years ago
5 0

Answer: the man's claim is true.

Step-by-step explanation:

Given that 30% of the well find water at a depth <=100 feet

P(X<=100) = 0.30

If the man's prediction work well the probability of finding well at less than 100 or equal should be high fwhen calculated from his results. So give 27 out of 80 wells

P(X<=100) = 27/80

P(X<=100) = 0.3375

Since 0.3375 > 0.3

The man's claim is true.

You might be interested in
- Which of the following is the least?<br> A).27<br> B) 1/4<br> C) 3/8<br> D) 2/11<br> E) 11%
mezya [45]

Step-by-step explanation:

A) 0.27

B) 1/4 = 0.25

C) 3/8 = 0.375

D) 2/ 11 = 0.1818

E) 11% = 0.11

E is the correct answer

4 0
3 years ago
Read 2 more answers
The center of a circle and a point on the circle are given. Write the equation of the circle in standard form.
pogonyaev

Answer:

A.Because ,center is (3,2)and point is (-2-3) .

and answer is (x-3)2+(y+2)2=52.

6 0
3 years ago
A local farm sells produce to a large grocery chain. The grocery store uses a 28% markup on the farms produce. Of the farm sells
kkurt [141]

Answer:

$3.84

Step-by-step explanation

move the decimal back two place - .28, it is a mark up so add a 1 at the beginning - 1.28 - multiply - 3 x 1.28 = 3.84

5 0
3 years ago
Whats the answer? HELP??
pishuonlain [190]

Answer:

<em> (1). 50.0° ; (2). 15.5 units</em>

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Lewis needed to find the difference in lengths between the hypotenuse and the longest leg of this triangle. His work is shown be
dimaraw [331]

Answer:

The answer is first and last

Step-by-step explanation:

Edge2020

im not gonna explain cuz some    other guy got it wrong and  im just answering for anyone  who needs it

7 0
3 years ago
Read 2 more answers
Other questions:
  • The measure of central angle YCZ is 80 degrees
    12·2 answers
  • If the pattern is 3ª¯², what is the value if a = 5?
    7·1 answer
  • The length of the den in Nellie's house is 18 feet. The area of the room is 216 square feet. How wide is the room?
    13·1 answer
  • Find the value of aa for which v=⎡⎣⎢⎢⎢5a−74⎤⎦⎥⎥⎥v=[5a−74] is in the set h=span⎧⎩⎨⎪⎪⎪⎪⎪⎪⎡⎣⎢⎢⎢5−1−5−2⎤⎦⎥⎥⎥,⎡⎣⎢⎢⎢05−2−2⎤⎦⎥⎥⎥,⎡⎣⎢⎢⎢0
    14·1 answer
  • Plx help agajb lsksosjb​
    6·2 answers
  • Please help!! Will mark Brainliest!!! 19 points
    6·1 answer
  • (9w x 0) - 12 and 9w - 12<br><br> Is it equivalent or not
    9·1 answer
  • What is the length of line segment VT?<br><br> 4 units<br> 8 units<br> 13 units<br> 14 units
    5·2 answers
  • What is the solutions to<br> (2x-1)(3x+4)=0?
    7·2 answers
  • Estimate the sum of 1 2/3+3 2/7
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!