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Nuetrik [128]
4 years ago
15

-1/9 -1/2, 14/9,4/3 midpoints

Mathematics
1 answer:
Readme [11.4K]4 years ago
8 0

Answer: (13/18, 1/6)

Step-by-step explanation: (-1/9, -1/2),(14/9, 4/3)

What you want to do is -1/9 + 14/9. Here our answer is 13/9. We then do 13/9 divided by 2 which in equation form is 13/9X1/2 which is 13/18. We want to solve the Y now. In equation form we do: 4/3 - 1/2 which equals 1/6 Therefore, the answer is (13/18, 1/6)

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A professor gives students a final exam for one of her statistics in psychology courses. She records grades out of 100 points, w
NemiM [27]

Answer:

The standard error for the distribution of exam grades is 1.482.

Step-by-step explanation:

The data provided is attached below.

Steps to compute the standard error of exam grades in SPSS are as follows:

Step 1:

Enter the data in a SPSS sheet

Step 2:

Go to Analyze → Descriptive Statistics → Descriptives...

A dialog box will open.

Step 3:

Move Score to the box labelled as "Variable(s)"

Step 4:

Go to options.

A dialog box will open.

Step 5:

Select all the statistics value required. Press OK.

Step 6:

Press OK.

The SPSS output is attached below.

The standard error for the distribution of exam grades is 1.482.

4 0
4 years ago
A student receives his grade report from a local community college, but the GPA is smudged. He took the following classes: a 2 h
Olin [163]

Answer:

  • C. 3.0

Step-by-step explanation:

<u>Lets calculate the points:</u>

  • Art - 2 hrs - B (3)                ⇒ 2*3 = 6 points
  • History - 3 hrs - A (4)         ⇒ 3*4 = 12 points
  • Science - 4 hrs - C (2)       ⇒ 4*2 = 8 points
  • Math - 3 hrs - B (3)            ⇒ 3*3 = 9 points
  • Lab - 1 hr - A (4)                 ⇒ 1*4 = 4 points

<u>Totals</u>

  • Total hours = 13            
  • Total points = 39

<u>GPA = total points/ total hours</u>

  • GPA = 39/13 = 3.0

Correct option is C

3 0
3 years ago
What is the absolute value of the complex number -4- sqrt 2i? A) sqrt 14 B) 3sqrt2 C)14 D)18
Novosadov [1.4K]
Remember the pythagorean theorem.

a^2 + b^2 = c^2

The complex number is a+bi,  the absolute value is 'c'

|-4-\sqrt{2} i| = \sqrt{(-4)^2 + (-\sqrt{2})^2} = \sqrt{16+2} = \sqrt{18} = 3\sqrt{2}
7 0
3 years ago
A rectangular room measures 18 ft by 37 ft. How many
Lera25 [3.4K]

Step-by-step explanation:

the area of a rectangle is length × width.

in our case

37 × 18 = 666 ft²

so, we need 666 ft² of tiles.

8 0
3 years ago
Read 2 more answers
I really need help on this question and I don't get it. please include work. Will give credit
Snowcat [4.5K]
If i am correct i think it is 3× = 78 +×-2 idk but i think it that hopefully u get it right :)
7 0
3 years ago
Read 2 more answers
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