The table gives information about the vehicle types and models that an

Question

1.jpg The table gives information about the vehicle types and models that an automaker produces. The “Fuel-Efficient Models” column shows the number of models of each type that average more than 30 miles per gallon on the highway. The safety rating of each model is given in increments of 0.5 stars, from 0 to 5. For each type of vehicle, the “Starting Price” column shows the price of the vehicle with the lowest starting price and the price of the vehicle with the highest starting price. Vehicle Type Number of Models Fuel Efficient Models Average Safety Rating Starting Price Compact 4 4 4.25 $17,000-$25,000 Sedan 4 4 4.5 $19,500-$28,000 Sport 2 0 3.75 $28,000-$33,000 SUV 3 1 3.67 $24,000-$30,500 Truck 2 0 4 $24,000-$28,000 For each of the following statements, select Inferable if the statement is Inferable based on the information in the table. Otherwise, select Not Inferable.

Sajjad1994 · Answer

Official Explanation

1.1  Because all four of the automaker’s sedans are Fuel efficient—that is, they average more than 30 mpg on the highway—it is true that the average highway fuel consumption of all the automaker’s sedans is greater than 30 mpg.

Answer: Inferable

1.2.  The lowest possible value of the average highway fuel consumption of all the automaker’s models will occur if each model gets the lowest possible highway fuel consumption. Assume that the nine fuel-efficient models get exactly 30 miles per gallon on the highway, and that the remaining six models get 0 miles per gallon on the highway. Then the sum of the fuel consumption of all fifteen models is 270 miles per gallon, and the average of all fifteen models is 18 miles per gallon. Since the fuel-efficient models get more than 30 miles per gallon, it is inferable that the average highway fuel consumption of all the automaker’s models is greater than 18 miles per gallon.

Answer: Inferable

1.3.  It is true that the lowest and highest starting prices in the sedan category are higher than the corresponding prices in the compact category, but this does not prove that the average starting price of all sedans is higher than the average starting price of all compacts. You can be certain that the lowest and highest starting prices in each row give the starting prices for two of the four cars of each type, but you cannot infer anything about the starting prices of the other two cars of each type. If the starting prices of the four cars in each category are evenly distributed within the range of starting prices for that category, then the average starting price of all compact cars is, indeed, lower than the average starting price of all sedans. On the other hand, it is possible that three of the four compacts all have the highest starting price of $25,000, and one has the lowest starting price of $17,000, in which case their average starting price is $23,000, while three of the four sedans all have the lowest starting price of $19,500, and one has the highest starting price of $28,000, in which case their average starting price is $21,625. In this scenario, the average starting price of all compact cars is greater than the average starting price of all sedans. (Incidentally, the questions in this Table Analysis set were actually answerable without any re-sorting of the table.)

Answer: Not inferable

gvij2017 · Answer

For Q3, average starting price is not the average of given starting prices for either compact or sedan car. 
We are given range of starting price here. Suppose all compact cars have starting price $25k and all sedan cars have starting price $19.5K then question stem is not true.

again if all compact cars have starting price $17k and all sedan cars have starting price $28K then question stem is true.

Therefore, this is not inferable.

Inferable	Not Inferable
		The average highway fuel consumption of all the automaker’s sedans is greater than 30 miles per gallon.
		The average highway fuel consumption of all the automaker’s models is greater than 18 miles per gallon.
		The average starting price of all compact cars is lower than the average starting price of all sedans.

The table gives information about the vehicle types and models that an

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Vehicle Type	Number of Models	Fuel Efficient Models	Average Safety Rating	Starting Price
Compact	4	4	4.25	$17,000-$25,000
Sedan	4	4	4.5	$19,500-$28,000
Sport	2	0	3.75	$28,000-$33,000
SUV	3	1	3.67	$24,000-$30,500
Truck	2	0	4	$24,000-$28,000

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The table gives information about the vehicle types and models that an

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