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first quartile (Q1) : Total number of term(N)/4 = Nth term
third quartile (Q3): 3 x (N)/4th term
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The first quartile of a data set is 32 and the third quartile is 52. Which of these values in the data set is an outlier?
83
The first quartile of a data set is 72 and the third quartile is 92. Which of these values in the data set is an outlier?
41
The first quartile of a data set is 52 and the third quartile is 72. Which of these values in the data set is an outlier?
21
The z-score for the third quartile?
.67
75th percentile is referred to as?
Third quartile
How do you calculate the third quartile for a mean of 110 and a standard deviation of 15?
If this is the only information you have, the answer would be somewhere around 125. Usually, you would find the third quartile by first finding the median. Then find the median of all of the numbers between the median and the largest number, which is the third quartile.
How do you calculate the first and third quartiles on a Casio fx-115 es?
The Casio fx-115 ES is a scientific calculator which you can use to calculate the first and third quartiles of a data set. To calculate the first and third quartiles, you first need to arrange the data set in ascending or descending order. Once the data set is arranged, you can use the following steps to calculate the first and third quartiles: Enter the data set into the calculator by pressing the Data/Matrix button. Once the data set is entered, press the STAT button and then the VARS button. Select the data set by pressing the number key that corresponds to the data set. Access the QUARTILE option by pressing the 5 key. Enter the number 1 to calculate the first quartile or enter the number 3 to calculate the third quartile. The calculator will display the first or third quartile of the data set. These steps can be used to calculate the first and third quartiles on a Casio fx-115 ES.
What is the difference between the first and third quartile?
The first quartile, or the lower quartile, is the value such that a quarter of the observations are smaller and three quarters are larger.The third quartile, or the upper quartile, is the value such that three quarters of the observations are smaller and a quarter are larger.
What is the interquartile range of a number?
the IQR is the third quartile minus the first quartile.
How do you solve a third quartile?
Roughly speaking, finding the third quartile is similar to finding the median. First, use the median to split the data set into two equal halves. Then the third quartile is the median of the upper half. Similarly, the first quartile is the median of the lower half.
What percent of the observations in a distribution lie between the first quartile and the third quartile?
50%
What is the name for the difference between the first quartile and the third quartile in a five number summary?
75th percentile
Is the third quartile greater than the first quartile with a data set consisting of 1000 values that are all different?
The value of any element in the third quartile will be greater than the value of any element in the first quartile. But both quartiles will have exactly the same number of elements in them: 250.
What is the name for the difference between the third quartile and first quartile in a five number summary?
interquartile range or IQR
The first quartile of a data set is 32 and the third quartile is 52. Which of these values in the data set is an outlier?
83
The first quartile of a data set is 72 and the third quartile is 92. Which of these values in the data set is an outlier?
41
The first quartile of a data set is 52 and the third quartile is 72. Which of these values in the data set is an outlier?
21
