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stealth61 [152]
2 years ago
12

Use the following dot plot to answer the questions.

Mathematics
1 answer:
cupoosta [38]2 years ago
8 0

Answer:

3.4

Decrease ; 3.375

Step-by-step explanation:

Mean = Σfx / Σf

Σfx = (1 * 2) + (2 * 2) + (3 * 3) + (4 * 9) = 51

Σf = 1 + 2 + 3 + 9 = 15

Mean = 51 / 15 = 3.4

If 1 more dot is added to the 3rd column:

Σfx = (1 * 2) + (2 * 2) + (3 * 4) + (4 * 9) = 54

Σf = 1 + 2 + 4 + 9 = 16

Mean = 54 / 16 = 3.375

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Answer:

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Step-by-step explanation:

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6 0
3 years ago
What is the mean median mode and range of the numbers 31 28 30 31 30 ...?
mamaluj [8]
1. Mean is the number you get when you add all these numbers and then divide by the number of numbers. So, (31 + 28 + 30 + 31 + 30) / 5 = 150 / 5 = 30
2. The median is the middle number in the list of numbers, so, the answer is 30 as well.
3. Mode is the number that appears most often, so here it is 30 and 31 because they both appear 2 times.
4. Range is the difference between the largest and smallest number, so 31 - 28 = 3. 
5 0
2 years ago
Sally is ordering lunch at a cafeteria. She has 3 choices for her salad, 2 choices for the main course, 4 choices for dessert an
Shkiper50 [21]
Hello there,

Your correct answer would be 72. Because 3x2x4x3= 72

I Hope this helps you!

~Jurgen
6 0
3 years ago
Read 2 more answers
Pleaseeeeeee helpppp!!!!
evablogger [386]

Try this one:


y = -\frac{1}{5} |x-4|+2

6 0
3 years ago
During a construction project, heavy rain filled construction cones with water. The diameter of a cone is 12 in. and the height
sergey [27]
Volume of a cone = <span>πr^2(h/3)
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v=</span><span>π324 in. cubed
or 
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3 0
3 years ago
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