A purchasing manager at a university is investigating which brand of LCD projector to purchase for equipping classrooms. Of major concern to her is the lifetime of the light bulbs used in the projectors. One company has published the following histogram regarding the lifetimes of a sample of 50 bulbs used in its LCD projectors. Relative frequency 0 03- 02- 0.1+ 011 700 0.08 750 0.14 0.3 0.24 800 850 Bulb lifetime (in hours) X 900 0.16 Ś 950 Based on the histogram, find the proportion of bulb lifetimes in the sample that are less than 950 hours. Write your answer as a decimal, and do not round your answer. 0.08 1000
A purchasing manager at a university is investigating which brand of LCD projector to purchase for equipping classrooms. Of major concern to her is the lifetime of the light bulbs used in the projectors. One company has published the following histogram regarding the lifetimes of a sample of 50 bulbs used in its LCD projectors. Relative frequency 0 03- 02- 0.1+ 011 700 0.08 750 0.14 0.3 0.24 800 850 Bulb lifetime (in hours) X 900 0.16 Ś 950 Based on the histogram, find the proportion of bulb lifetimes in the sample that are less than 950 hours. Write your answer as a decimal, and do not round your answer. 0.08 1000
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
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Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 15PPS
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Interpreting relative frequency histograms
A purchasing manager at a university is investigating which brand of LCD projector to purchase for equipping classrooms. Of major concern to her is the lifetime
of the light bulbs used in the projectors. One company has published the following histogram regarding the lifetimes of a sample of 50 bulbs used in its LCD
projectors.
Relative frequency
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