Show work on how u get each answer 4. In a Public Health Service study, a histog
ID: 1150394 • Letter: S
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Show work on how u get each answer 4. In a Public Health Service study, a histogram was plotted showing the number of cigarettes per day smoked by each subject (male current smokers), as shown below.7 The density is marked in parentheses. The class intervals include the right endpoint, not the left. (a) The percentage who smoked 10 cigarettes or less per day is around 1.5% 15% 30% 50% (b) The percentage who smoked more than a pack a day, but not more than 2 packs, is around 1.5% 30% 15% (There are 20 cigarettes in a pack.) 15% 50% (c) The percent who smoked more than a pack a day is around 1.5% 30% 50% (d) The percent who smoked more than 3 packs a day is around 0.5 of 1% 10% (e) The percent who smoked 15 cigarettes per day is around 3.5% 0.25 of 1% 0.35 of 1% 0.5 of 1% 1.5% 10% (3.5) 3 U2 (1.5) 0.5) 0 O 10 20 40 80 Number of cigarettesExplanation / Answer
a.
Answer: It is 1.5%.
It indicates the first box in the graph, where the vertical axis represents the percentage and the horizontal axis represents the number of cigarette. The number 0 to 10 fall in this category that has 1.5%.
b.
Answer: It is 1.5%.
If 1 pack consists of 20 cigarettes, then 2 packs should bear (20 × 2 =) 40 cigarettes. The number 20 to 40 created the third box from the left; it has the percentage of 1.5%.
c.
Answer: It is 1.5%.
Smoking 1 pack is equal to 20 cigarettes per day. It consists 1.5% in the graph.
d.
Answer: 0.5 of 1%
3-packs means (3 × 20 =) 60 cigarettes. It comes under the box (40 to 80); it is just middle (0.5) of it. If the whole box is 1%, then 0.5 of 1% would be the answer.
e.
Answer: It is 3.5%.
It comes under the box (10 to 20).
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