Question

ORTH Submit Question 5. Points possible: 8 Unlimited attempt:s Score on last attempt: 8. Score in gradebook: 8 Message instructor about this question Luke DeVore Dashboard Here is a sample data set 456.4 430.8 399.2 449.2 328.2 328.7 367.3 431.4 329.8 418.5 431.4 396.6 377.1 430.1 404.1 336.6 378.4338.9 391.7 396.6 431.7 386 380.7 441.2 391.2 346.5 410.7 413.3 380.8 334.8 431.4 342.6 458.1 450.4 377.1 436.9 389.9 381.3 425.1 375.2 381.6 384.6 447.2 450 390.8 406.9 407.7 374.4 458.6 422.9 377.348 447.2 452.7 Courses 28 Groups Calendar Inbox 2 Find the first quartile for this data set. -430.1 Find the third quartile for this data set. Find the interquartile range for this data set. IOR Submit Question 6. Points possible: 8 Unlimited attempts Score on last attempt: (0, o, o), Score in gradebook: (0, o, o), Out of: (3.2, 3.2, 1 Message instructor about this question

Answer 1

Here I use excel to compute it. For finding quartiles "=quartile (array,quart) "command is used.

quart denote 1,2 or 3rd.

Here 1st quartile ,Q1 is 377.1

3rd quartule ,Q3 is 431.4

And interquartile range IQR=Q3-Q1= 54.3