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
Ivenika [448]
3 years ago
11

What's the answer to this problem?

Mathematics
1 answer:
WITCHER [35]3 years ago
8 0
The answer to this question is < (0.36)
You might be interested in
Compare the numbers on top and then on the bottom order the numbers from least to greatest-thanks
STALIN [3.7K]
Here are all of the answers for the problems showed...
10-  8.72=8.720
13- 2.573<2.753
16- 2.97, 2.714, 2.09, 2.007 
4 0
3 years ago
Read 2 more answers
The Statistical Abstract of the United States published by the U.S. Census Bureau reports that the average annual consumption of
Karo-lina-s [1.5K]

Answer:

a) P(\bar X

b)P(98

c) P(\bar X

d) P(93

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Part a

Let X the random variable that represent the heights of a population, and for this case we know the distribution for X is given by:

X \sim N(99.9,30)  

Where \mu=99.9 and \sigma=30

We select a random sample of n=36. And from the central limit theorem we know that the distribution for the sample is given by:

\bar X \sim N(\mu =99.9 , \frac{\sigma}{\sqrt{n}}= \frac{30}{\sqrt{38}}=4.87)

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}

If we apply this formula to our probability we got this:

P(\bar X

=P(Z

Part b

For this case we want this probability:

P(98

=P(\frac{98-99.9}{\frac{30}{\sqrt{38}}}

And we can find this probability on this way:

P(-0.39

And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.  

P(-0.39

Part c

If we apply this formula to our probability we got this:

P(\bar X

P(\bar X

Part d

For this case we want this probability:

P(93

=P(\frac{93-99.9}{\frac{30}{\sqrt{38}}}

And we can find this probability on this way:

P(-1.42

And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.  

P(-1.42

3 0
3 years ago
Hey all!
Rainbow [258]

Answer:

  • 65°

Step-by-step explanation:

<u>Use the law of cosines:</u>

  • cos C = (25² + 27² - 28²)/(2*25*27)
  • cos C = 0.4222
  • m∠C = arccos 0.4222
  • m∠C = 65°
8 0
3 years ago
How to solve this one step inequality
dem82 [27]

Answer: add 1 to both sides

             -1+r+1≥4+1

              simplify

               x≥5

Step-by-step explanation:

8 0
3 years ago
Members of the theater club sold tickets for the spring
Tpy6a [65]

so basically what i was thinking of was they sold them in the spring

8 0
3 years ago
Other questions:
  • Write the expression in radical form
    7·1 answer
  • A 10​-foot ladder is leaning against a​ building, with the base of the ladder 5 feet from the building. how high up on the build
    13·1 answer
  • If the expression below has a positive value, which inequality represents all possible values of x in the expression
    10·1 answer
  • How can you determine if a piece-wise relation is a function?
    11·1 answer
  • Find -8+(-13)<br> _______<br> (-6)°2
    13·2 answers
  • Which expression has the greatest value<br> 4 . 3(2)
    11·1 answer
  • Please understand the explanation
    9·1 answer
  • When the temperature stays the same, the volume of a gas is inversely proportional to the pressure
    5·1 answer
  • Find the Area of the triangle, Is it In or In2
    12·1 answer
  • Wich statement is true about the graphs of the two lines y=-6 and ×=1/6?<br>No links ​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!