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A class carried out an experiment to measure the lengths of cuckoo eggs. The length of each egg was measured to the nearest mm. The results are shown in the following histogram:    1) How many eggs were measured altogether in the experiment? 2) How many eggs were less than or equal to 23 mm in length?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM

1) The number of eggs measured is found by adding the frequencies.

So, number of eggs measured = 1 + 8 + 17 + 40 + 26 + 8 = 100

2) The number of eggs less than or equal to 23 mm in length is found by adding the frequencies for the groups 19-20, 20-21, 21-22 and 22-23.

Required number of eggs = 1 + 8 + 17 + 40 = 66

Answered by | 04 Jun, 2014, 03:23: PM

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