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morpeh [17]
4 years ago
8

On a test of 75 items, Pedro got 92% correct. (There was partial credit on some items.) How many items did he get correct? Incor

rect?
Mathematics
1 answer:
AleksAgata [21]4 years ago
5 0
To determine the number of correct items (including those with partial credit), we can multiply the total number of items by the percentage correct. In this case, the test has a total of 75 items, and the percentage that Pedro got correct was 92%. Therefore, 75*92% = 69 (this is an exact score). Therefore, he got 69 items right, and 75 - 69 = 6 items wrong.
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40 points fast For the following set of test scores, identify:
myrzilka [38]

Answer:

 The measure of center would this student want his teacher to use is the

median= {\bf 75}

Mean= {\bf 5}  ,  Mode={\bf 82}  , Range={\bf40}  and   Interquartile Range= {\bf 32}

Step-by-step explanation:

Given Data set= 50,55,70,75,82,82,90

Number of elements in data set= 7

To find Mean

The ‘Mean” is the average of a set of numbers.

The "Mean" is computed by adding all of the numbers in the data together and dividing by the number  of elements contained in the data set.

Mean= \frac{50 +55 +70 + 75 + 82 + 82 + 90} {7 }

Mean= \frac{504}{7}

Mean= 5

Median

The “Median” is the middle value of a set of ordered numbers.

Therefore Median=75

Mode

The "Mode" for a set of data is the value that occurs most often.

It is not uncommon for a data set to have more than one mode. This happens when two or more  elements occur with equal frequency in the data set.

Therefore Mode=82

Range

The "Range" is the difference between the largest value and smallest value in a set of data.

Range= 90-50

Range= 40

Interquartile Range

The “Interquartile Range” is the difference between smallest value and the largest value of the middle  50% of a set of data.

The "Interquartile Range" is from Q1 to Q3:

To find the interquartile range of a set of data:

The cut the list into four equal parts

. The quartiles are the “cuts”

The interquartile range is the distance between the two middle sets of data

Interquartile Range= Q_3-Q_1

Interquartile Range= 82-50

Interquartile Range= 32

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4 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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Y=3X+0

It is already in the y= mx+b form.

4 0
3 years ago
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The angle of elavation would be 45°, this is because straight up would be represented by 180°, and 90°, would remain as 1200 ft traveled, and half of 90°, is 45° which would double the distance traveled
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3 years ago
Answer this question please
astraxan [27]

Answer:

6

Step-by-step explanation:

add 2 each time

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