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
Anit [1.1K]
3 years ago
9

Explain the difference between observed frequency and expected frequency as it relates to Chi-Square test.

Mathematics
1 answer:
emmasim [6.3K]3 years ago
5 0

Answer:

Step-by-step explanation:

A Chi-square test is used to test the test of independence between rows and columns, contingency tables. It is a test related to frequencies. The observed frequency is a given statistical frequency known as the actual frequency,  the expected frequency is known as the theoretical frequency is derived from the study by using the sum total of the row and total in the column divided by their corresponding sample size.

You might be interested in
Solve: negative 1 over 2 x + 1 = −x + 8 (5 points)
Naya [18.7K]
It is 14 because if you have -1/2x + 1 = -x + 8 you would combine the multiplied terms into a single fraction then subtract the one from both sides simplify till you get -x/2 = -x + 7 then you will add like terms so the x’s then you multiply all terms by two like 2(-x/2)= 2•7 then you can get 14.
(Sorry if you didn’t need the whole explanation)
5 0
2 years ago
CATNUMATICAL Reason Quantitatively Rachel, Timothy, and Robyn each make
valkas [14]

Answer:

See explanation

Step-by-step explanation:

The question is incomplete, as the dimension of each prism is not given.

So, I will give a general explanation.

From the question, we understand each prism.

So, to get the new volume; we simply add up the volume of each prism.

For instance (we want to make assumptions)

Rachel

Length = 4; Width = 3; Height = 4

Timothy

Length = 6; Width = 3; Height = 4

Robyn

Length = 4; Width = 8; Height = 3

So, we have:

Volume = Length * Width * Height

For each, we have:

Rachel =4* 3* 4 =48

Timothy= 6* 3* 4 = 72

Robyn = 4* 8* 3 = 96

The volume of the new

Volume = 48 + 72 + 96

Volume = 216

The dimension of new prism.

Using the assumed values, we have:

Length = 4; Width = 3; Height = 4

Length = 6; Width = 3; Height = 4

Length = 4; Width = 8; Height = 3

Now, we consider the measure of the sides

Sides with the same length will form a new side.

<u>Side 1</u>

Length =4 --- Rachel

Height = 4 ---- Timothy

Length = 4 --- Robyn

The above lengths have the same measure. So, one of the sides of the new prism will assume the value of this length.

So:

Length = 4 -- for the new prism

<u>Side 2</u>

Width =3

Width = 3

Height = 3

The above lengths have the same measure. So, one of the sides of the new prism will assume the value of this length.

So:

Width = 3 -- for the new prism

<u>Side 2</u>

<u></u>Height = 4<u></u>

Length = 6

<u></u>Width =8<u></u>

<u></u>

<u>For this, we simply add up each length.</u>

<u>So, we have:</u>

<u></u>Height = 4 + 6 + 8<u></u>

Height = 18 --- for the new prism

So, the new dimension is:

Length = 4

Length = 6

Height = 18

Volume = 4 * 3 * 18

Volume = 216

5 0
2 years ago
What are the multiples of 1/5
Tems11 [23]
There are infinite multiples of 1/5

multiply 1/5 by a number "n"

where n = all real numbers

(1/5)*n
n = 1 --> 1/5
n = 2 --> 2/5
n = 3 -->3/5

and so on
7 0
3 years ago
Read 2 more answers
A fashion designer wants to know how many new dresses women buy each year. A sample of 683 women was taken to study their purcha
Ulleksa [173]
The answer is I don’t know sorrry
8 0
2 years ago
11.) The sequence below shows the number of trees a nursery plants each year.
hjlf

Answer:

A. ez

Step-by-step explanation:

_sequences_eoc_prep_solutions.pdf

SKATE OR DIE

4 0
2 years ago
Other questions:
  • I am going to mix a gallon bucket of window cleaner. The instruction direct you mix 1 part cleaner to 3 parts water. How much cl
    15·1 answer
  • Solve for x 6n+8=4n-5+6n-3
    8·1 answer
  • Answer the questions in the picture please
    12·1 answer
  • Help math question 7 and 8
    15·1 answer
  • the sum of three numbers is 45. the second of the three numbers is three more than twice the first number, x. the third number i
    11·2 answers
  • Annie estimates that the height of a bookcase is 78.25 in. The actual height is 75.50 in.
    12·1 answer
  • How do you solve a system of equations by multiplying
    8·1 answer
  • Solve the equation 6X+2=74
    7·2 answers
  • A hot air balloon went from an elevation of 4,940 feet to an elevation of 3,122 feet in 36 minutes. What was its rate of descent
    10·1 answer
  • A recipe for lemonade called for 1 cup of sugar and 5cups of water.How much sugar is used per cup of water
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!