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Simora [160]
3 years ago
13

On a spelling test of 25 words, patrick spelled 17 more words correctly than he spelled incorrectly. What percent of the words d

id he spell incorrectly?
Mathematics
2 answers:
Simora [160]3 years ago
5 0

Answer:

68 correct 32 incorrect

Step-by-step explanation:

Tpy6a [65]3 years ago
4 0
He got 68 percent of the words correct and 32 percent incorrect
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A little help Mean median mode range
goldenfox [79]

Answer:

Mean, median, and mode are three kinds of "averages". There are many "averages" in statistics, but these are, I think, the three most common, and are certainly the three you are most likely to encounter in your pre-statistics courses, if the topic comes up at all.

The "mean" is the "average" you're used to, where you add up all the numbers and then divide by the number of numbers. The "median" is the "middle" value in the list of numbers. To find the median, your numbers have to be listed in numerical order from smallest to largest, so you may have to rewrite your list before you can find the median. The "mode" is the value that occurs most often. If no number in the list is repeated, then there is no mode for the list.

Mean, Median, Mode, and Range

The "range" of a list a numbers is just the difference between the largest and smallest values.

   Find the mean, median, mode, and range for the following list of values:

13, 18, 13, 14, 13, 16, 14, 21, 13

The mean is the usual average, so I'll add and then divide:

(13 + 18 + 13 + 14 + 13 + 16 + 14 + 21 + 13) ÷ 9 = 15

Note that the mean, in this case, isn't a value from the original list. This is a common result. You should not assume that your mean will be one of your original numbers.

The median is the middle value, so first I'll have to rewrite the list in numerical order:

13, 13, 13, 13, 14, 14, 16, 18, 21

There are nine numbers in the list, so the middle one will be the (9 + 1) ÷ 2 = 10 ÷ 2 = 5th number:

13, 13, 13, 13, 14, 14, 16, 18, 21

So the median is 14.

The mode is the number that is repeated more often than any other, so 13 is the mode.

The largest value in the list is 21, and the smallest is 13, so the range is 21 – 13 = 8.

mean: 15

median: 14

mode: 13

range: 8

Note: The formula for the place to find the median is "([the number of data points] + 1) ÷ 2", but you don't have to use this formula. You can just count in from both ends of the list until you meet in the middle, if you prefer, especially if your list is short. Either way will work.

Step-by-step explanation:

4 0
3 years ago
FRUIT
laiz [17]
2p+6a=$14
3p+9a=$21

3p+9a=21
Subtract 9a
3p=21-9a
divide all by 3
p=7-3a
plug it into start equations

2p+6a=14
2(7-3a)+6a=14
14-6a....+6a=14

this zeroes out...
5 0
3 years ago
The formula for the surface area of a sphere is A=4pi r*2, where r is the length of the radius. Find the surface area of the sph
g100num [7]

Answer:

Step-by-step explanation:

area=4×22/7×14²=4×22×28=2464 units²

8 0
3 years ago
Explain why triangle abc is similar to triangle ade.
mihalych1998 [28]

Answer:

They are both right triangles

Step-by-step explanation:

The triangles are both the same shape but one is bigger than the other.

5 0
3 years ago
If y varies directly with x, and y is 12 when x is 8, find y when x is 9.​
jasenka [17]

Answer:

26

Step-by-step explanation:

its not

5 0
2 years ago
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