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BRAINLIEST (statistics) (please help fast)

As an introduction to probability, a student is asked to roll a fair, six-sided number cube seven times. The results of those seven rolls are shown below.

1, 4, 4, 4, 4, 6, 5

What is the IQR of the data?

1
1.53
2
5

Respuesta :

reinhard10158

Step-by-step explanation:

first find the median (middle value) of the lower and upper half of the data. these values are quartile 1 (Q1) and quartile 3 (Q3). the IQR is the difference between Q3 and Q1.

first sort the data low to high.

the median of the whole data set is 4.

1, 4, 4, 4, 4, 5, 6

the lower half is

1, 4, 4

the upper half is

4, 5, 6

the median of the lower half is 4

1, 4, 4

the median of the upper half is 5

4, 5, 6

the IQR is then

5 - 4 = 1

mhanifa

Answer:

  • A) 1

Step-by-step explanation:

Given data:

  • 1, 4, 4, 4, 4, 6, 5

We need to find the IQR of data.

What is the IQR:

  • IQR is the difference of medians of upper and lower halves of the data.

or

  • IQR = Q3 - Q1

Find Q3 and Q1:

  • Q3 = 5, since upper half consists of 4, 5, 6.
  • Q1 = 4, since lower half consists of 1, 4, 4.

Find the IQR:

  • IGR = 5 - 4 = 1

Correct choice is A

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