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lozanna [386]
3 years ago
6

The test scores of 40 students are listed below. Find P85.

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
8 0

Answer:

Option A (89).

Step-by-step explanation:

Percentile is a statistic in which the an element at a certain percentage position is determined. To calculate the percentiles accurately, it is important that the data is present in the ascending order. Percentile is an important concept in data analysis. Interestingly, 50th percentile is the median of the data. The difference between the 75th and the 25th percentile is the interquartile range. To find the 85th percentile of the data, calculate 85% of 40, which is the number of elements in the data set. 40 * 85/100 = 34. The number on the 34th position is the 85th percentile of the data. It can be observed that 89 is on the 34th position. Therefore, Option A is the answer!!!

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A laboratory is testing a product by heating or cooling it at different rates. The table shows the results of four tests. Drag a
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Answer:

See the picture

Step-by-step explanation:

The answer is attached

3 0
3 years ago
The object above is symmetrical through Y = 17 inches Z = 18 inches, and H = 11 inches, what is the area of the object ?
oksian1 [2.3K]

Answer:

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8 0
2 years ago
A rectangular room is 3 meters longer than it is wide, and its perimeter is 22 meters. Find the dimension of the room. The lengt
lyudmila [28]

Answer:

Width = 4 m

Length = 7 m

Step-by-step explanation:

given:

perimeter of a rectangle = 22m

L = 3 + W

perimeter = 2L + 2W

perimeter = 2 (3 + W) + 2W

22 = 6 + 2W + 2W

22 - 6 = 4W

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check:

perimeter = 2L + 2W

22 = 2(7) + 2(4)

22 = 14 + 8

22 = 22  ---- OK

4 0
3 years ago
Simplify. [6.6 ÷ (–5 + 3)] • (–1)
eimsori [14]
Hi there, we use PEMDAS to solve this problem, PEMDAS is parenthesis, Exponents, Multiply, Divide, Add, and Subtract. In this case, we have [6.6÷(-5+3)]*(-1), 6.6/-5+3(-1)=6.6/-2(-1)=(-3.3)(-1)=3.3. So, your answer is 3.3
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3 years ago
(he was flunking school to get out of school plus he worked at kfc and loved his job, during the 11th grade btw)  
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Use quillbot it can summarize it
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