answer.
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
Leona [35]
2 years ago
6

Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% chance that the land has oil.

Jason decides to test the land for oil. He buys a kit that claims to have an 80% accuracy rate of indicating oil in the soil. What is the probability that the land has no oil and the test shows that it has oil?
Mathematics
1 answer:
bazaltina [42]2 years ago
3 0
<span>45% -------------------------------chance that the land has oil

then
55</span>%--------------------------------chance that the land not have oil

<span>80% -------------------accuracy rate of indicating oil in the soil. (if land does have oil)
20</span>% -------------------accuracy rate of indicating not oil in the soil. (if land does have oil)

20% ---------------------accuracy rate of indicating oil in the soil. (if land has not oil)
80% ---------------------accuracy rate of indicating not oil in the soil. (if land has not oil)

 that the land has no oil----------------55%
 the test shows that it has oil-------- 20%
then 0.55*0.20=0.11=11%
the probability that the land has no oil and the test shows that it has oil is 11%
You might be interested in
In a day, Robin spends 6 hours at school, sleeps for 9 hours, plays for 3 hours, and spends the rest of the time doing other thi
slavikrds [6]
6hrs = school
9hrs = sleeps              = 18hrs // 24hrs      ----6hrs left
3hrs = plays

6hrs = other things


playing = 12.5% -- 3/24                 3/24*100
other things = 25% -- 6/24             6/24*100
5 0
2 years ago
Read 2 more answers
The basketballs Noah packed had two different prices. Of the total number of basketballs sold, 60% had a price that was $21 more
kirill115 [55]

Answer:

$(8967/n + 8.4)

Step-by-step explanation:

0.4nx + 0.6n(x+21) = 8967

nx + 12.6n = 8967

x = 8967/n - 12.6

x+21 = 8967/n + 8.4

Where n is the no. of balls

Example: if total balls were 300

n = 300

More expensive one would cost:

8967/300 + 8.4 = $38.29

8 0
2 years ago
Robin and evelyn are playing a target game. the object of the game is to get an object as close to the center as possible. each
svetlana [45]
Here's some of the info

~<span>Evelyn has the greater mean.

~</span>Evelyn’s objects generally landed farther away from the center than Robin’s.<span>
~</span>The object is to get the objects close to the center, so Robin is winning.<span>
</span>
5 0
2 years ago
Read 2 more answers
A dolphin is 42 feet underwater and ascends at a constant rate for 14 seconds until it reaches the surface. Identify and interpr
Cloud [144]
Ok so, based on the graph lets say that x = seconds and  y = depth of dolphin. the interception in both points is when they are at 0 i.e when x is equals 0 and y equals 0. So At 0 seconds, the dolphin is 42 feet below the surface. So we say that x = 0, y = -42 and then the y intercepts = -42 so the point of interception is(0 (seconds),-42(depth of the dolphin)) When the clock says it's 14 seconds, the dolphin is even with the surface (0 below the surface this time). So we say that x = 14, y = 0. In this case The x intercept = 14 (14,0). But we need to calculate The slope with the formula= (y2 - y1)/(x2 - x1) = 42/14 = 3. Therefore, the formula for this line is y = 3x - 42.
3 0
2 years ago
On Monday, Amie rides her bike from home to school. After school, she bikes to work. After work, she bikes home. Based on the in
AfilCa [17]
To get a full answer we would need the diagram but to solve it I would find the distances between her house and school and add that to the distance from her school to her work then from her work home if Thier isn't information for her distance from work to her home I would double the amount that she already went
4 0
2 years ago
Read 2 more answers
Other questions:
  • Explain how to use the combine place value strategy to find 223 -119.
    6·1 answer
  • The size of a large milkshake is 1.4 times the size of a medium milkshake. Write 1.4 as a percent
    13·2 answers
  • Elena works at least 4 hours but not more than 8 hours. the amount of money elena earns for working t hours is represented by a
    9·2 answers
  • Now imagine that instead of walking along the path 1→2→3→4→1, ann walks 80 meters on a straight line 33∘ north of east starting
    6·2 answers
  • What is the interquartile range of the data set?
    7·2 answers
  • Which is a counterexample for the conditional statement shown? If three distinct points lie in a plane, then the points can form
    14·1 answer
  • David is 22 years old. He buys 100/300/50 liability insurance, collision insurance with a $100 deductible, and comprehensive ins
    6·1 answer
  • The idle time for taxi drivers in a day are normally distributed with an unknown population mean and standard deviation. If a ra
    8·1 answer
  • 1. Walking to improve health. In a study investigating a link between walking and improved health (Social Science &amp; Medicine
    12·1 answer
  • LMN is a straight angle. Find m LMP and m NMP​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!