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
lisabon 2012 [21]
3 years ago
15

Heights of men on a baseball team have a​ bell-shaped distribution with a mean of 166 cm 166 cm and a standard deviation of 5 cm

5 cm. Using the empirical​ rule, what is the approximate percentage of the men between the following​ values? a. 156 156 cm and 176 176 cm b. 151 151 cm and 181 181 cm
Physics
1 answer:
kaheart [24]3 years ago
3 0

Answer:

95 %

99.7 %

Explanation:

\mu = 166 cm = Mean

\sigma = 5 cm =  Standard deviation

a) 156 cm and 176 cm

166-5\times 2=156

166+5\times 2=176

From the empirical rule 95% of all values are within 2 standard deviation of the mean, so about 95% of men are between 156 cm and 176 cm.

b) 151 cm and 181 cm

166-5\times 3 =151

166+5\times 3=181

The empirical rule tells us that about 99.7% of all values are within 3 standard deviations of the mean, so about 99.7% of men are between 151 cm and 181 cm.

You might be interested in
Block A, with mass mA, is initially at rest on a horizontal floor. Block B, with mass mB, is initially at rest on the horizontal
nexus9112 [7]

Answer:

(E) μs(mA +mB)g

Explanation:

We can apply for mB:

∑ Fx = mB*a   (→)

⇒  Ffriction = mB*a   ⇒  a = Ffriction / mB = μs*N / mB

⇒ a = μs*(mB*g) / mB  ⇒   a = μs*g    (acceleration of the system)

Now, for mA we have

∑ Fx = mA*a   (→)

F - Ffriction = mA*a      ⇒  F = mA*a + Ffriction  

⇒     F = mA*(μs*g) + μs*(mB*g)   ⇒   F = μs*g*(mA + mB)

We must know that the friction acts only between the two blocks

8 0
3 years ago
Which equals 23 kilograms?
Semmy [17]

Answer:

in pounds if would be 50.7 or 50.7063

3 0
3 years ago
Read 2 more answers
You can obtain a rough estimate of the size of a molecule by the following simple experiment. Let a droplet of oil spread out on
Marat540 [252]

Answer:

  • The diameter of the molecule of oil is 1.405 10 ^{-9} \ m

Explanation:

We define density as

\rho = \frac{mass}{volume}

So, the volume for our oil will be

volume = \frac{mass}{\rho}

volume = \frac{7.62 \ 10^{-7} \ kg}{ 912 \ \frac{kg}{m^3}  }

volume = \frac{7.62 \ 10^{-7} \ kg}{ 912 \ \frac{kg}{m^3}  }

volume = 8.355 \ 10 ^{-10} \ m^3

the volume for a cylinder with radius r and height h is

volume = \pi r^2 h

So, we can obtain the height of the droplet of oil as:

h = \frac{volume}{\pi r^2}

the radius is

r=43.5  \ cm = 0.435 \ m

h = 1.405 10 ^{-9} \ m^3

And this is the diameter of the oil molecule.

6 0
3 years ago
How is it that even light precipitation can still cause the collection of large amounts of water.
Firdavs [7]

Answer:

the heat of the light.

Explanation:

no matter the light, there's always heat being produced from it. and heat makes liuqid rise

4 0
3 years ago
What do you mean by Aquatic habitat? Give 2 examples of Desert habitat
Brilliant_brown [7]

Answer:

hope this answer will help you

plzzzz mark me as brainliest

follow me

and what do u think about indians

8 0
3 years ago
Other questions:
  • A pendulum makes 50 complete swings in 2 min 40 s.<br> What is the time period for 1 complete swing?
    12·2 answers
  • Why does a compass work differently on a moon then it would on earth
    14·1 answer
  • The four diagrams above show two magnets, X and Z. They are different distances apart in each diagram. In which diagram will mag
    9·2 answers
  • What is watt equivalent to in terms of kg,m and s
    12·1 answer
  • At what temperature is the fahrenheit scale reading equal to twice that of the celsius?
    14·1 answer
  • A soccer player kicks a ball with initial velocity of 10m/s at an angle of 30 degrees above the horizontal.....what is the magni
    12·1 answer
  • A ray in benzene has a critical angle of 41.8 deg when trying to enter air. What is the index of refraction for benzene?
    12·1 answer
  • The force an ideal spring exerts on an object is given by , where measures the displacement of the object from its equilibrium p
    6·1 answer
  • What is the only part in our body we do not stretch?
    11·2 answers
  • When Elements neutral atom contains 5 neutrons 4 electrons and 4 protons
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!