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
GuDViN [60]
4 years ago
9

Bud N. Chemist must determine the density of a mineral sample. His four trials yield densities of 4.77 g/cm3 , 4.67 g/cm3 , 4.69

g/cm3 , and 4.81 g/cm3 . Independent studies found the correct density to be 4.75 g/cm3 . Which of the following statements represents the best analysis of the data? A) Bud's results have much greater accuracy than precison B) Bud's results have much greater precision than accuracy C) Bud's results have high accuracy and high precision D) Bud's results have low accuracy and low precision E) Bud's equipment is faulty
Chemistry
1 answer:
Sati [7]4 years ago
7 0

Answer:

A

Explanation:

PRECISION AND ACCURACY ARE TERMS THAT ARE USED TO INDICATE THE QUALITY OF A GIVEN SET OF STATISTICAL OBSERVATIONS.

WHILE PRECISION TALKS ABOUT THE LEVEL OF AGREEMENT AMONGST THE SAME SET OF DATA OBSERVATIONS, ACCURACY TALKS ABOUT HOW FAR OR HOW CLOSE THE TRUE VALUE IS TO THE CALCULATED VALUE. TAKING AN AVERAGE OF ALL THE VALUES, IT STANDS AT 4.735 WHICH IS QUITE CLOSE TO THE TRUE VALUE OF 4.75

NOW, LOOKING AT THE SPREAD OF THE VALUES IN THE OBSERVATION, WE CAN SEE THAT THESE VALUES ARE QUITE NOT CLOSE TO EACH OTHER. HENCE, WE CAN CONCLUDE THAT ALTHOUGH HIS OBSERVATIONS ARE QUITE QUITE ACCURATE BASED ON THE OVERALL AVERAGE, WE CAN CONFIDENTLY POSIT THAT HIS VALUES HAVE A LOW LEVEL OF PRECISION

You might be interested in
This man is using a block and tackle to lift a heavy bale of cotton. the block and tackle contains which simple machine?
AlladinOne [14]
The simple machine used is called atwood machine. 
8 0
3 years ago
Which statement is true for an open system?
Bingel [31]

Answer:

Before we get into the first law of thermodynamics we need to understand the relation between heat and work and the concept of internal energy. Just like mass, energy is always conserved i.e. it can neither be created nor destroyed but it can be transformed from one form to another. Internal energy is a thermodynamic property of the system that refers to the energy associated with the molecules of the system which includes kinetic energy and potential energy.

Whenever a system goes through any change due to interaction of heat, work and internal energy, it is followed by numerous energy transfer and conversions. However, during these transfers, there is no net change in the total energy.

Similarly, if we look at the first law of thermodynamics it affirms that heat is a form of energy. What it means is that the thermodynamic processes are governed by the principle of conservation of energy. The first law of thermodynamics is also sometimes referred to as the Law of Conservation of Energy

Explanation:

3 0
3 years ago
Which molecule does protein break up to?
melomori [17]

Answer:

enzymes

Explanation:

sorry if I am wrong, have a nice day/night

5 0
3 years ago
Read 2 more answers
In June there are fewer hours of daylight and less direct sunlight in the
Dafna11 [192]
<span>In June there are fewer hours of daylight and less direct sunlight in the Southern Hemisphere.

Your answer is <em>Southern Hemisphere</em><em></em>.

</span>
5 0
3 years ago
The____of an earthquake is the location where the rupture of an
exis [7]

Answer:

try hypocenter for the blank spot... hope this helps

Explanation:

7 0
3 years ago
Other questions:
  • The reaction of 1.250 g k with o2 forms 2.273 g of an oxide of potassium that is used in self-contained breathing devices. deter
    6·1 answer
  • A mineral that has no planes of weakness in its lattice structure will not break along planes. Which term is appled to the way i
    11·2 answers
  • CH4O model please ...............
    6·1 answer
  • In the reaction ca + f2 caf2 , what should be the coefficient for f2?
    8·1 answer
  • Ex of physical Properties
    8·2 answers
  • Would the amount of dissolved oxygen in the Missouri River increase or decrease if large amounts of chemical waste were dumped i
    12·1 answer
  • Protons are located
    12·1 answer
  • What percentage of atoms in the entire universe are hydrogen atoms?
    6·1 answer
  • What cation ion is formed from magnesium iodate
    14·1 answer
  • When steam condenses into water, __________. When steam condenses into water, __________. heat is given off by the water no heat
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!