The following data are the yields, in bushels, of hay from a farmer's field in the last 10 years. 375, 210, 150, 147, 429, 189, 320, 580, 407, 180. find the iqr.

  • matematika

    Subject:

    Math
  • Author:

    ripley
  • Created:

    1 year ago

Answers 2

Answer:

227.

Step-by-step explanation:

Arrange the yields in ascending order:

147, 150, 180, 189, 210, 320, 375, 407, 429, 580.

The lower quartile =  180

The upper quartile =  407

So the IQR = 407-180

= 227.

Answer:

interquartile range (IQR) = 227

Step-by-step explanation:

arrange the data in ascending order: 147, 150, 180, 189, 210, 320, 375, 407, 429, 580

  • quartile divide the data into 4 equal parts
  • suppose, there are 'n' number of observations, then the quartiles are Q1, Q2, & Q3
  • Q1 is the 25th percentile
  • Q2 = is the 50th percentile (also called median)
  • Q3 = is the 75th percentile

here, Q1 = 180, Q2 = 265, Q3 = 407

interquartile range = Q3 - Q1

                                 = 407 - 180

interquartile range (IQR) = 227

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