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love history [14]
2 years ago
8

The chi-square test assesses whether the _____ observed in a cross-tabulation diverge from those one would expect under the null

hypothesis of no difference between groups.
Mathematics
1 answer:
pantera1 [17]2 years ago
3 0

Answer: Frequencies .

Step-by-step explanation:

In statistics theory the chi-square test statistic is calculated by considering each cell and the expected frequency is subtracted from the observed frequency after that the difference is squared, and the total is divided by the expected frequency. This is highlight that the key focus of the chi-square test is the frequencies .

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You are standing 15 ft away from a tree. The angle of elevation from the groumd where you are standing to the top of a tree is 5
Allushta [10]

Answer:

the height of the tree is 19.2 ft

Step-by-step explanation:

Given;

distance from the foot of the tree, d = 15 ft

angle of elevation; θ = 52°

let the height of the tree = h

Make a sketch of the problem as follows;

                                  ↑

                                  ↑ h

     52°---------------------

                  15 ft

If completed to form a right triangle by adding the hypotenuse side, we can calculate the height of the tree as follows;

tan (52)=  \frac{h}{15} \\\\h = 15 \times tan(52)\\\\h = 19.2 \ ft

Therefore, the height of the tree is 19.2 ft

4 0
2 years ago
If the sensor started working 15 minutes into the draining, how much was in the tank to begin with?
UNO [17]
It has to be around 10 cm
3 0
2 years ago
What is the slope intercept form of (3, -2) and (0,4)
Levart [38]

Answer:

Slope is 2/-1 the equation would be y=2/-1x+4

Step-by-step explanation:

Use the formula of y2-y1/x2-x1 to find the slope

Plot the two points on a graph and find the y int. (:

Hope this helped!

4 0
2 years ago
For brainlest pls ..
mixer [17]
39 (Hope you understand )

4 0
2 years ago
Read 2 more answers
A students cost for college was $2900. She spent $319 of that on books. What percent of college costs were spent on books?
yulyashka [42]

ANSWER

11% of college costs were spent on books

EXPLANATION

if you multiply 11% (.11) to 2900 you would get your answer ($319)

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3 years ago
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