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Alenkinab [10]
3 years ago
6

Assessment: To help assess student learning in her developmental math courses, a mathematics professor at a community college im

plemented pre- and posttests for her students. A knowledge-gained score was obtained by taking the difference of the two test scores.
(a) What type of experimental design is this?
Mathematics
1 answer:
Flauer [41]3 years ago
6 0

Answer: Randomized design.

Step-by-step explanation:

Randomization is the process of assigning the treatments or tested factors to the experimental units in an experiment in accordance to definite laws or probability is technically known as randomization.

A randomized design relies on randomization to control for the effects of extraneous variables.

In a randomized design, objects or subjects are assigned to groups completely at random. One standard method for assigning subjects to treatment groups is labelling each subject and afterwards, using a list of random numbers to select from the labelled subjects. It is used when the experiment has treatment conditions and subjects. Also, subjects are randomly assigned to different treatments.

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Determine if the relationship is a function & explain why and why not.
SCORPION-xisa [38]
It is not a function because there can't be two of the same number on the x-axis.
7 0
3 years ago
PLEASE HELP ME! Images below & I give Brainliest
neonofarm [45]

Answer:

Graph C with the green dots.

Step-by-step explanation:

y = 0.5x + 5 is a linear equation, so we can rule out A because it is not straight.

5 represents the y-intercept, so we rule out B because that graph doesn't intercept the y-axis at (0,5).

Graph C represents a straight line that passes through (0, 5) & has a 0.5 slope, so that is our answer.

Hope this helps. :0)

4 0
3 years ago
Show that parallelogram with its diagonals intersecting at 90° is rhombus.
34kurt
I do not have an answer for that, but you should try looking for that on google or yahoo answers.
8 0
3 years ago
PQRS is a rectangle.
Anuta_ua [19.1K]

Answer:

diagram pls

then I can answer this question

8 0
3 years ago
What is the prime factor of 8
ExtremeBDS [4]
Prime factor is a factor that is a prime number.
Prime factors of :
8 : 2 × 2 × 2. Also can be written as
{2}^{3}
12 : 2 × 2 × 3. Also can be written as
{2}^{2} \times 3

20 : 2 × 2 × 5. Also can be written as
{2}^{2} \times 5

30 : 2 × 3 × 5

56 : 2 × 2 × 2 ×7. Also can be written as
{2}^{3} \times 7

70 : 2 × 5 × 7

You can find all of them by using Factor Tree [ as shown in the picture] or Dividing by prime numbers.

5 0
3 years ago
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