The information below shows the summary statistics of data adapted from Statistics Canada, regarding gasoline prices from urban cities across Canada. (i) This data is based on values from 17 cities.
(ii. The average gas price in 2013 across the country based on this sample was $1.2356
(iii) 50% of the cities reported average gas prices over $1.23 per litre
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Question

The information below shows the summary statistics of data adapted from Statistics Canada, regarding gasoline prices from urban cities across Canada.  (i) This data is based on values from 17 cities.
(ii. The average gas price in 2013 across the country based on this sample was $1.2356
(iii) 50% of the cities reported average gas prices over $1.23 per litre
A) (i), (ii) and (iii) are all correct statements 
B) (i) and (ii) are correct statements but not (iii). 
C) (i) and (iii) are correct statements but not (ii). 
D) (ii) and (iii) are correct statements, but not (i). 
E) (i), (ii) and (iii) are all false statements.

Quizplus · Accepted Answer

Statement (i) indicates that there are 17 cities in the sample, which is correct. 
Statement (ii) states that the average gas price in 2013 across the country based on this sample was $1.2356, which is also true based on the information given in the question. 
Statement (iii) is not entirely accurate. We know from statement (ii) that the overall average is $1.2356, so 50% of the cities would have reported average gas prices over $1.2356. However, the statement specifies $1.23 per litre, which is not the same as the overall average and could be misleading. Therefore, statement (iii) is not entirely correct.

The Information Below Shows the Summary Statistics of Data Adapted