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anonymous
 one year ago
Here are 10 test scores: 30, 74, 76, 77, 78, 79, 80, 80, 82, 84. The mean of these numbers are 74.
Does this set have an outlier and, if so, how does removing it affect the mean?
A. The set has 30 as an out outlier, and removing it increases by about 5.
B. The data has no outliers.
C. The set has 30 as an outlier and removing it decreases the mean by about 5.
D. The set has 30 as an outlier and removing it decreases the mean by about 10.
anonymous
 one year ago
Here are 10 test scores: 30, 74, 76, 77, 78, 79, 80, 80, 82, 84. The mean of these numbers are 74. Does this set have an outlier and, if so, how does removing it affect the mean? A. The set has 30 as an out outlier, and removing it increases by about 5. B. The data has no outliers. C. The set has 30 as an outlier and removing it decreases the mean by about 5. D. The set has 30 as an outlier and removing it decreases the mean by about 10.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Lyralei @mathscience4ever @jordanawest22 @Slacker @sleepyjess @jane11509

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Ghostedly @greenleaf1 @gaba

aripotta
 one year ago
Best ResponseYou've already chosen the best response.030 is the outlier. what's the mean after you remove it?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@AriPotta i'm not sure

jane11509
 one year ago
Best ResponseYou've already chosen the best response.1I think the mean would be 78.8

aripotta
 one year ago
Best ResponseYou've already chosen the best response.0giving her the answer isn't helping her

jane11509
 one year ago
Best ResponseYou've already chosen the best response.1Sorry The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count. this is how you find the mean

aripotta
 one year ago
Best ResponseYou've already chosen the best response.0\[\frac{ 74+ 76+77+ 78+79+80+80+82+84 }{ 9 }=mean\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok thank you @jane11509

jane11509
 one year ago
Best ResponseYou've already chosen the best response.1Basically add all the numbers together and there are 9 minbers so divide the sum by 9 and BAM you have it :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you too @AriPotta
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