Mathematics, 05.08.2021 05:00 miner12924owhu4d
A purchasing manager at a university is investigating which brand of LCD projector to purchase to equip "smart" classrooms. of major concern to her is the lifetime of the light bulbs used in the projectors. One company has published the following information regarding the lifetimes of a sample of 50 bulbs used in its LCD projectors: BEN Frequency 20 16 15 12 10 6 5 4 S 700 750 900 950 1000 SOO 850 Bulb lifetime (in hours) Based on the histogram, find the proportion of bulb lifetimes in the sample that are greater than or equal to 900 hours. Write your answer as a decimal, and do not round your answer.
Answers: 2
Mathematics, 21.06.2019 21:30
(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.
Answers: 2
A purchasing manager at a university is investigating which brand of LCD projector to purchase to eq...
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