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A biologist measured the lengths of 1000 cuckoo bird eggs. The results are summarized below: Length (in millimeters) 18.75- 19.75 19.75 - 20.75 20.75 -21.75 21.75 - 22.75 22.75- 23.75 23.75 - 24.75 24.75- 25.75 Percent of Eggs 0.8 4.0 17.3 37.9 28.5 10.7 0.8 a) What percent of the group of eggs was less than 21.75 mm long? b) What is the probability that one of the eggs selected at random was at least 20.75 mm long but less than 24.75 mm long?

A biologist measured the lengths of 1000 cuckoo bird eggs. The results are summarized below: Length (in millimeters) 18.75- 19.75 19.75 - 20.75 20.75 -21.75 21.75 - 22.75 22.75- 23.75 23.75 - 24.75 24.75- 25.75 Percent of Eggs 0.8 4.0 17.3 37.9 28.5 10.7 0.8 a) What percent of the group of eggs was less than 21.75 mm long? b) What is the probability that one of the eggs selected at random was at least 20.75 mm long but less than 24.75 mm long?

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A biologist measured the lengths of 1000 cuckoo bird eggs. The results are summarized below: Length (in millimeters) 18.75- 19.75 19.75 - 20.75 20.75 -21.75 21.75 - 22.75 22.75- 23.75 23.75 - 24.75 24.75- 25.75 Percent of Eggs 0.8 4.0 17.3 37.9 28.5 10.7 0.8 a) What percent of the group of eggs was less than 21.75 mm long? b) What is the probability that one of the eggs selected at random was at least 20.75 mm long but less than 24.75 mm long?
Transcribed Image Text:A biologist measured the lengths of 1000 cuckoo bird eggs. The results are summarized below: Length (in millimeters) 18.75- 19.75 19.75 - 20.75 20.75 -21.75 21.75 - 22.75 22.75- 23.75 23.75 - 24.75 24.75- 25.75 Percent of Eggs 0.8 4.0 17.3 37.9 28.5 10.7 0.8 a) What percent of the group of eggs was less than 21.75 mm long? b) What is the probability that one of the eggs selected at random was at least 20.75 mm long but less than 24.75 mm long?
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