{
"query": {
"display": "lower quartile $$8,\\:9,\\:11,\\:5,\\:10,\\:13,\\:4,\\:7,\\:9,\\:13,\\:12$$",
"symbolab_question": "STATISTICS#firstquartile 8,9,11,5,10,13,4,7,9,13,12"
},
"solution": {
"level": "PERFORMED",
"subject": "Statistics",
"topic": "firstquartile",
"subTopic": "Other",
"default": "7"
},
"steps": {
"type": "interim",
"title": "First Quartile (lower quartile) of $$8,\\:9,\\:11,\\:5,\\:10,\\:13,\\:4,\\:7,\\:9,\\:13,\\:12:{\\quad}7$$",
"steps": [
{
"type": "definition",
"title": "First Quartile",
"text": "The first quartile is the value separating the lower quarter and higher three-quarters of the data set.<br/>The first quartile is computed by taking the median of the lower half of a sorted set."
},
{
"type": "step",
"primary": "Arrange the terms in ascending order",
"result": "4,\\:5,\\:7,\\:8,\\:9,\\:9,\\:10,\\:11,\\:12,\\:13,\\:13"
},
{
"type": "interim",
"title": "Take the lower half of the ascending set:$${\\quad}4,\\:5,\\:7,\\:8,\\:9$$",
"steps": [
{
"type": "step",
"primary": "Count the number of terms in the data set",
"result": "\\begin{Bmatrix}4&5&7&8&9&9&10&11&12&13&13\\\\1&2&3&4&5&6&7&8&9&10&11\\end{Bmatrix}"
},
{
"type": "step",
"primary": "The number of terms in the data set is",
"result": "11"
},
{
"type": "step",
"primary": "Since the number of terms is odd, take the elements below the middle one, that is, the lower $$5$$ elements$$.$$",
"result": "4,\\:5,\\:7,\\:8,\\:9"
}
],
"meta": {
"interimType": "Take The Lower Half Specific 0Eq"
}
},
{
"type": "interim",
"title": "Median of $$4,\\:5,\\:7,\\:8,\\:9:{\\quad}7$$",
"steps": [
{
"type": "definition",
"title": "Median",
"text": "The median is the value separating the higher half of the data set, from the lower half.<br/>If the number of terms is odd, then the median is the middle element of the sorted set<br/>If the number of terms is even, then the median is the arithmetic mean of the two middle elements of the sorted set"
},
{
"type": "step",
"primary": "Arrange the terms in ascending order",
"result": "4,\\:5,\\:7,\\:8,\\:9"
},
{
"type": "interim",
"title": "Find the median of the ascending set:$${\\quad}7$$",
"steps": [
{
"type": "step",
"primary": "Count the number of terms in the data set",
"result": "\\begin{Bmatrix}4&5&7&8&9\\\\1&2&3&4&5\\end{Bmatrix}"
},
{
"type": "step",
"primary": "The number of terms in the data set is",
"result": "5"
},
{
"type": "step",
"primary": "Since the number of terms is odd, the median is the middle element of the sorted set.",
"result": "7"
}
],
"meta": {
"interimType": "Get Median From Ascending List 0Eq"
}
},
{
"type": "step",
"result": "7"
}
],
"meta": {
"interimType": "Median Top 1Eq"
}
},
{
"type": "step",
"result": "7"
}
]
}
}
Solution
lower quartile
Solution
Solution steps
Arrange the terms in ascending order
Take the lower half of the ascending set:
Median of
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Frequently Asked Questions (FAQ)
What is the firstquartile 8,9,11,5,10,13,4,7,9,13,12 ?
The firstquartile 8,9,11,5,10,13,4,7,9,13,12 is 7