MATHEMATICS COLLEGE

A survey of UF students asked for their employment status and their year in school. The results appear below. yr in school job no job
Freshman 16 22
Sophomore 24 15
Junior 17 20
Senior 25 19
Super Senior 8 5

What is the distribution of the test statistic under the null hypothesis

Answers

Answer 1
Answer:

Answer:

There is no relationship between your year in school and having a job.

Step-by-step explanation:

In this instance, the chi sq test need to be performed.

Chi sq is used to determine if there is a significant relationship between two categorical variables.

The two variables here are year in school and employment status.

The two variables are independent(no relationship exists)

This implies that there is null hypothesis

Therefore, the Null Hypothesis is

There is no relationship between your year in school and having a job.

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Plz help i dont understand and if u can help i will mark brainliest!!​

Answers

Answer:

Let fertilizer be F

and peat moss be P

since F is proportional to P

F = kP

where, k = constant of proportionality

k = F/P

putting in the values,

k = (3/4) /12

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WILL GIVE BRAINLIESTThe graph below represents which system of inequalities? (attachment below)

A. y ≤ −2x + 3
y ≤ x + 3

B. y ≥ −2x + 3
y ≥ x + 3

C. y ≤ −3x + 2
y ≤ −x + 2

D. y > −2x + 3
y > x + 3

Answers

The answer is A.
We can first eliminate D since it uses these (<, >) signs and the lines are shaded, indicating the points on those lines are solutions.
We can also eliminate C because the y intercept in C’s lines is 2, while in the graph, they are both 3.
Finally, we can look at both inequalities on the graph and see that the shaded areas are both underneath the line. This means that y is less than the equation for the line, eliminating B
So, the answer is A
Hope this made sense!!

A painting, square in shape, is placed in a wooden frame with width of 10% of the length of the side of the paining. The painting was enlarged by 10%. By what percent is the new frame bigger than the original frame if the width of the frame remains the same?

Answers

Answer:

8.3%

Step-by-step explanation:

9.87 x 10^7 - 2.5 x 10^6

answer in scientific notation

Answers

Answer:

= 96.2x10^6

Explanation:

To make the calculations easier, factor the expression:

= (9.87x10-2.5)x10^6

= 96.2x10^6

Final answer:

To subtract numbers in scientific notation, both terms must be expressed in the same form. Convert 9.87 x 10^7 to 98.7 x 10^6, subtract 2.5 x 10^6 to get 96.2 x 10^6, and then convert this back to 9.62 x 10^7.

Explanation:

To solve the given problem 9.87 x 10^7 - 2.5 x 10^6, we need to make sure that both terms are in the same form of scientific notation. Here, the base (10) and the exponent (7 and 6) are already in the form of scientific notation. The next step is to perform the subtraction.

Because the two terms are not in the same order of magnitude, we cannot subtract directly. First convert them into the same form: 9.87 x 10^7 is the same as 98.7 x 10^6. Now, we can perform the subtraction: 98.7 x 10^6 - 2.5 x 10^6 = 96.2 x 10^6.

However, the typical form of scientific notation has just one digit before the decimal point, thus convert 96.2 x 10^6 back to 9.62 x 10^7.

Learn more about Scientific Notation here:

brainly.com/question/2005529

#SPJ3

How many solutions does the system of equations below have y=3x+2 y-2x=4

Answers

it has one solution
(2,8)
x=2
y=8

Answer:

Only one solution.

Step-by-step explanation:

y = 3x +2

y -2x =4

y - 2x = 4

=> y = 2x +4

y = 3x + 2

y = 2x + 4

Since both equations are not the same, so the answer cannot be "infinitely many solutions".

They both intersect each other 1 point, so it cannot be "no solutions".

So the answer is "Only 1 solution".
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