{
"query": {
"display": "average $$2,\\:2,\\:1,\\:3,\\:1,\\:3,\\:1,\\:2,\\:3,\\:2,\\:4,\\:2,\\:2,\\:1$$",
"symbolab_question": "STATISTICS#arithmeticmean 2,2,1,3,1,3,1,2,3,2,4,2,2,1"
},
"solution": {
"level": "PERFORMED",
"subject": "Statistics",
"topic": "arithmeticmean",
"subTopic": "Other",
"default": "2.07142…"
},
"steps": {
"type": "interim",
"title": "Arithmetic Mean (average) of $$2,\\:2,\\:1,\\:3,\\:1,\\:3,\\:1,\\:2,\\:3,\\:2,\\:4,\\:2,\\:2,\\:1:{\\quad}2.07142…$$",
"steps": [
{
"type": "definition",
"title": "Arithmetic Mean",
"text": "The arithemtic mean (average) is the sum of the values in the set divided by the number of elements in that set.<br/>If our data set contains the values $$a_{1},\\:\\ldots\\:,\\:a_{n}$$ (n elements) then the average$$=\\frac{1}{n}\\sum_{i=1}^{n}a_{i}\\:$$"
},
{
"type": "interim",
"title": "Compute the sum of the data set:$${\\quad}\\sum_{i=1}^{n}a_{i}=29$$",
"steps": [
{
"type": "step",
"primary": "Take the sum of $$2,\\:2,\\:1,\\:3,\\:1,\\:3,\\:1,\\:2,\\:3,\\:2,\\:4,\\:2,\\:2,\\:1$$",
"result": "2+2+1+3+1+3+1+2+3+2+4+2+2+1"
},
{
"type": "step",
"primary": "Simplify",
"result": "29"
}
],
"meta": {
"interimType": "Take Sum Of Set Title 0Eq"
}
},
{
"type": "interim",
"title": "Compute the number of terms in the data set:$${\\quad}n=14$$",
"input": "2,\\:2,\\:1,\\:3,\\:1,\\:3,\\:1,\\:2,\\:3,\\:2,\\:4,\\:2,\\:2,\\:1",
"steps": [
{
"type": "step",
"primary": "Count the number of terms in the data set",
"result": "\\begin{Bmatrix}2&2&1&3&1&3&1&2&3&2&4&2&2&1\\\\1&2&3&4&5&6&7&8&9&10&11&12&13&14\\end{Bmatrix}"
},
{
"type": "step",
"primary": "The number of terms in the data set is",
"result": "14"
}
],
"meta": {
"interimType": "Compute Number Terms Specific 0Eq",
"gptData": "pG0PljGlka7rWtIVHz2xyoU2cWyPLDgE1QLLHeauuc3K5O+fXcZudMI+14ZU5ZwQp9wy31HdDJRMD4uiaWz07swGDq7iA6052JsaffwjYCDsuwo1y/W3Yn8dtrvMrX8B/hNtSkgUH/+LSRIKzqYJg5VY+TzjZXTjQtozDJTk9lU4S5nd8Z8AmLMF7+7F3eT/6q0JhXK5yuKLlAPtjtIQNPNkg0IYzD43BdqCmsUyk8gs5jEkeEbGnbbcByfWqBQ5"
}
},
{
"type": "interim",
"title": "Divide the sum by the number of terms and simplify:$${\\quad}2.07142…$$",
"steps": [
{
"type": "step",
"primary": "Divide the sum by the number of terms:$${\\quad}\\frac{\\sum_{i=1}^{n}a_{i}}{n}=\\frac{29}{14}$$",
"result": "\\frac{29}{14}"
},
{
"type": "step",
"primary": "Simplify",
"result": "2.07142…"
}
],
"meta": {
"interimType": "Compute The Average Title 0Eq"
}
},
{
"type": "step",
"result": "=2.07142…"
}
]
}
}
Solution
average
Solution
Solution steps
Compute the sum of the data set:
Compute the number of terms in the data set:
Divide the sum by the number of terms and simplify:
Popular Examples
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Frequently Asked Questions (FAQ)
What is the arithmeticmean of 2,2,1,3,1,3,1,2,3,2,4,2,2,1 ?
The arithmeticmean of 2,2,1,3,1,3,1,2,3,2,4,2,2,1 is 2.07142…