10. The lengths of the 575 iron rods in a blacksmith's workshop are shown in the histogram below: Frequency density 25 20 15 10 5 0 10 20 30 Length (1 cm) 40 50 a) How many items that are between 15 and 35 cm long? b) What fraction of the items are less than 25 cm long? c) The shortest 20% of the rods are to be recycled. Calculate an estimate of the shortest item that will not be recycled.

10. The lengths of the 575 iron rods in a blacksmith's workshop are shown in the histogram below: Frequency density 25 20 15 10 5 0 10 20 30 Length (1 cm) 40 50 a) How many items that are between 15 and 35 cm long? b) What fraction of the items are less than 25 cm long? c) The shortest 20% of the rods are to be recycled. Calculate an estimate of the shortest item that will not be recycled.

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter6: Combined Operations Of Common Fractions And Mixed Numbers

Section: Chapter Questions

Problem 15A: Four studs of the following lengths in inches are to be machined from bar stock: 134,178,2516 and...

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