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melisa1 [442]
2 years ago
12

A teacher wants to know if burning a scented candle affects students’ performance on pop quizzes. In the experiment, there will

be a treatment group and a control group each taking their quizzes in a room that either does or does not have a scented candle burning. On a randomly chosen day, the first 15 students who arrive to class will be the control group while the last 15 students who arrive will be the treatment group. Which statement best describes the composition of the groups? The characteristics of the two groups should be roughly equivalent because both groups have 15 students. The characteristics of the two groups should be roughly equivalent because the students were split into groups on a randomly chosen day. The characteristics of the two groups might not be roughly equivalent because the students were not labeled and given a random number to place them in one of the groups. The characteristics of the two groups might not be roughly equivalent because students who arrive around the same time might be friends and have similar preferences for scented candles.
Mathematics
1 answer:
ArbitrLikvidat [17]2 years ago
6 0

The characteristics of the two groups might not be roughly equivalent because the students were not labeled and number wasn't given.

<h3>What is Composition? </h3>

This is the process which involves combining different parts in other to form a whole.

The student were not labeled and number wasn't given to place them in one of the groups will best describe their roughly equivalent composition hence option C was chosen.

Read more about Composition here brainly.com/question/9464122

#SPJ1

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Write a C program to compute Matrix Multiplication of two matrices. Use one dimensional array to store each matrix, where each row is stored after another. Hence, the size of the array will be a product of number of rows times number of columns of that matrix. Get number of row and column from user and use variable length array to initialize the size of the two matrices as well as the resultant matrix. Check whether the two matrices can be multiplied or not. Write a getMatrix() function to generate the array elements randomly. Write a printMatrix() function to print the 1D array elements in 2D Matrix format. Also, write another function product(), which multiplies the two matrices and stores in the resultant matrix. With SEED 5, the following output is generated.

Sample Output

Enter the rows and columns of Matrix A with space in between: 3 5

Enter the rows and columns of Matrix B with space in between: 5 4

Matrix A:

    8     6     4     1     6

    2     9     7     7     5

    1     3     1     1     2

Matrix B:

    9     5     4     5

    9     9     8     1

    4     4     3     5


    2     6     2     1

    4     5     2     4

Product AxB:

168   146   106    91

161   186   125    81

50    52    37    22

In conclusion, the answer is 5x1

Please give Brainliest answer thanks! :)

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4 years ago
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PQRS is a parallelogram. Answer the questions below.
abruzzese [7]

Answer:

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3 years ago
Please answer I will give brainlist
suter [353]

Answer:

Try chrord. The picture looks like a tangent but the CG line looks most like a chord.

Step-by-step explanation:

A chord is a line inside of the circle.

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3 years ago
Maxi is trying to stack books on a shelf that is 18 inches tall. If the books are each 4/5 inch thick, how many can she stack?
kari74 [83]
I believe it should be 22½ or 22 books

You would need to divide 18 and ⅘

18 ÷ ⅘ = 22½

I hope this helps, even though I’m not totally sure :)
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3 years ago
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