Question
Statistics show that the distribution of monthly rent for a 4-room HDB flat has a mean of $2,530 and a standard deviation of $240. (i)
Statistics show that the distribution of monthly rent for a 4-room HDB flat has a mean of $2,530 and a standard deviation of $240.
(i) Assume that the distribution of monthly rent for a 4-room HDB flat follows a normal distribution, what is the probability of renting a flat at a price cheaper than $2,000? (ii) In fact, the distribution of monthly rent for a 4-room HDB flat is positively skewed. What is the probability of finding the mean rent of a sample of 35 units of 4-room HDB flat more than $2,600?
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Calculus Early Transcendentals Early Transcendentals
Authors: Dennis G Zill, Warren S Wright
4th Edition
0763797375, 9780763797379
