Construct a grouped frequency Distribution The heights (in feet) of 25 Tallest b

Question

Construct a grouped frequency Distribution The heights (in feet) of 25 Tallest buildings in Calgary,Alberta. Place data in 5 classes: Class Width Class limits Class boundaries Frequency Cumulative frequency Data: 689, 645, 645, 626, 608, 580, 530, 530, 527, 507, 500,469, 468, 463 460, 449, 441, 435, 435, 432, 420, 410, 410, 408, 407. Will rate high! Construct a grouped frequency Distribution The heights (in feet) of 25 Tallest buildings in Calgary,Alberta. Place data in 5 classes: Class Width Class limits Class boundaries Frequency Cumulative frequency Data: 689, 645, 645, 626, 608, 580, 530, 530, 527, 507, 500,469, 468, 463 460, 449, 441, 435, 435, 432, 420, 410, 410, 408, 407. Will rate high!

Explanation / Answer

sorting the data in ascending order, we get 407 408 410 410 420 432 435 435 441 449 460 463 468 469 500 507 527 530 530 580 608 626 645 645 689 hence highest value - lowest value = 689-407 = 282 to make  5 classes, the class width should be = 282/ 5 = 56.4 ˜ 57 Class interval Frequency Cumulativefrequency 407-464 12 12 464-521 4 16 521-578 3 19 578-635 3 22 635-692 3 25 407 408 410 410 420 432 435 435 441 449 460 463 468 469 500 507 527 530 530 580 608 626 645 645 689

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