46 Which of the following is a statistical question? a) How old is Dawn\'s water

Question

46 Which of the following is a statistical question? a) How old is Dawn's water heater? b) How many years does an elephant live? c) How old is Carl's car? d) What year was President Obama born? 47) Jake paid $12,810 dollars for his car. After 6 years, the value of his car has depreciated to $5,124. Which of the following shows the ratio of his initial cost to the depreciated value after 6 years? a) 2 to 5 b) 5 to 2 c) 6 to 5 d) 7 to 4 e) 11 to 6 48) A team of people, t, is made up of girls (g) and boys (b). There are three times as many boys as girls. Which of the following is a correct equation based on this information? c) gab-t d) 1/3 t e) b 3/4t

Explanation / Answer

46).Statistics is the practice of collecting and analysing numerical data. Here, the average age of an elephant is part of the data about the average age of various animal species. Hence, option (b) is the correct answer.

47).The ratio of the initial value to the depreciated value (after 6 years) of Jake’s car is 12810/5124 = 5/2. Hence, option (b) is the correct answer.

48). The number of boys is 3 times that of the girls i.e. b = 3g. Now t = g+b = 3g+g = 4g so that g = t/4. Then b = 3g = 3t/4. Hence, option (e) is the correct answer.

49).The given figure, after a 900 clockwise rotation, will be the figure (a). Then after a reflection across the Y-Axis, it will look like the figure (c). Hence, option (c) is the correct answer.

50).8 servings of a punch require 4/5 cup of vodka so that 1 serving of the punch will require (4/5)*1/8 = 1/10 cup of vodka. Hence, option (d) is the correct answer.

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