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
Sav [38]
2 years ago
14

Stats homework I really need help please

Mathematics
1 answer:
OverLord2011 [107]2 years ago
4 0

Answer::

If the author assumes normal range is within one S.D.  (5 years) then

the low normal is Average minus 5 and high normal is Average plus 5

Low = 20.2 - 5 = 15.2

High = 20.2 + 5 = 25.2

A normal chart shows that 68.27% of values lie with one standard deviation on either side of  the mean

You might be interested in
Use synthetic division to solve (x3 + 1) ÷ (x – 1). What is the quotient?
mamaluj [8]
Steps:

Use the divisor and find x :
x - 1 = 0  **add 1
x= 1
Now we will use the 1 in dividing:

take the coefficients from in front of all terms
   ** make sure you include 0's for x^2 and x since you have to have all terms

set it up with a 1 in a box:

1|  1   0   0  1   **bring the first number down
____________
     1                    **multiply the boxed number by the first number and add it                                 to the second number

1|  1   0   0  1   
____+1_____       **repeat with the rest of the terms
     1   1   

1|  1   0    0    1
  ___+1_+1_+1   
     1   1    1    2                              
**when you're done, use the new numbers to write an equation starting with a term with a degree one less than the previous equation.
**since there is a remainder, rewrite it divided by the original divisor

final answer:
x^2 + x + 1 + (2/ x -1)
4 0
2 years ago
Read 2 more answers
N + 7n -5=3 what is n =
Gre4nikov [31]

Answer:

n=1

Step-by-step explanation:

n+7n-5=3

8n=8

divide both side by coefficient of n we get

n=1

7 0
3 years ago
Read 2 more answers
Find the GCF of numbers 132 and 242 using prime factorization.
tatyana61 [14]

Answer:

1)Find the prime factorization of 242

242 = 2 × 11 × 11Step-by-step explanation:

2)Find the prime factorization of 132

132 = 2 × 2 × 3 × 11

3)To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 2 × 11

The lost one 4) GCF = 22

6 0
2 years ago
What is the surface area of a sphere with a diameter of 8 mm?<br> Use 3.14 for π .
Rudik [331]

Answer:

Step-by-step explanation:

804.25mm

8 0
3 years ago
In preperation for an easter egg hunt, 4 blue eggs are filled for every 7 green. How many green eggs will be filled if 100 blue
ivann1987 [24]

Answer:

1. Typed question: 175 green eggs

2. Attached: 22 tables

Step-by-step explanation:

For the question you typed down, it is a ratio and proportion problem. You need to solve for the ratio proportional to the first ratio given.

4 blue eggs are filled for every 7 green. This means that the ratio between blue eggs and green eggs is 4:7.

Now yo need to figure out a ratio proportional to 4:7 if 100 blue eggs were filled. Below is how this is set up:

\dfrac{4\;blue\;eggs}{7\;green\;eggs} = \dfrac{100\;blue\;eggs}{x\;green\;eggs}

Now let's solve for x:

\dfrac{4\;blue\;eggs}{7\;green\;eggs} = \dfrac{100\;blue\;eggs}{x\;green\;eggs}\\\\or\\\\\dfrac{4}{7}=\dfrac{100}{x}\\\\Cross-multiply\\\\4x = (7)(100)\\\\4x = 700\\\\Divide\;both\;sides\;by\;4\\\\\dfrac{4x}{4}=\dfrac{700}{4}\\\\x=175

For your attached problem:

You have a total of 175 people, you need to figure out how many round tables you need if here are 8 chairs for each table You just need to divide the number of people by the number of chairs per table.

175 ÷ 8 = 21.9 tables

Now since you cannot have half a table, you round up to the nearest whole number. (we round up because you need to make sure that all of them are seated)

21.9 ≅ 22 tables.

8 0
3 years ago
Other questions:
  • The equation y= -5.131x^2 +31.821x -3.333 approximates the number of people standing in line to catch a commuter train x hours a
    9·2 answers
  • a 6-pack carton of sport drink bottles at the local grocery store is labeled an 13.48 oz. what is the weight of the carton round
    7·1 answer
  • If a leaf on the ground is 80 feet from the base of a tree, and the angle of elevation to the top of the tree from the leaf is 4
    9·2 answers
  • I have 5 digits.My eight is worse 8000. One of my sixes is worth 60.The other is worth 10 times as much.My other digit is a zero
    15·2 answers
  • Rewrite 4a + 7a using the Distributive Property.
    5·1 answer
  • 3. Plot the points and then answer the questions:
    6·1 answer
  • Give your answer as a compound inequality with reduced, proper or improper fractions.
    8·2 answers
  • Janine's family is designing a new garage. Use A  l  w to determine the area of the garage if the length l is 24 feet and the
    6·1 answer
  • A recent survey shows that the average man will spend 141,288 hours sleeping, 85,725 hours working, 81,681 hours watching televi
    10·2 answers
  • PLEASE HELP!!!!!<br> What is m&lt;1
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!