20) A study found that 42% of households own 1 television set, 35% own 2 televis
ID: 3052556 • Letter: 2
Question
20) A study found that 42% of households own 1 television set, 35% own 2 television sets, 16% own 3 television sets, and 7% own 4 television sets. According to these results, what percentage of homes own at most 3 television sets? PI) 12 A. 16% B. 7 2 23% random sample of houses in a particular area was surveyed to find out informationor mbre 9 bout living area (sq. ft.). Suppose the five-number summary is as follows: 21 a580 Minimum : 700 Quartile #1 1900 Median 2200 Quartile #3: 2580 Maximum: 3000 : Is the smallest house an outlier? A. No, it is within 1.5(IQR) of the third quartile. B) No, it is within 1.5(IQR) of the first quartile. 1-1-5 (080) =-1019 Yes, it is less than 1.5(IQR) below the median. es, it is less than 1.5(IQR) below the first quartile. Yes, it is less than 1.5(IQR) below the third quartile.Explanation / Answer
20. The percentage of homes own at most 3 television sets
= 100 * P(a randomly selected home own at most 3 television sets)
= 100* [ P(a randomly selected home own 1 television set) + P(a randomly selected home own 2 television sets) +
P(a randomly selected home own 3 television sets) ]
= 100 * (0.42 + 0.35 + 0.16)
= 93 %
21. IQR = Q3 - Q1 = 2580 - 1900 = 680
Now
smallest possible bound = 1900 - (1.5 * 680) = 880
A) No, it is within 1.5 (IQR) of the first quartile.
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