The table gives information about the annual car show that a certain a

There is one car show every year, so the first n car shows, which would mean shows in first n years, the price was 10 and 12 respectively for online regn and on site regn. However after these, the pricing increased.

You will get value of n by multiplying the figure in second column by 10 and adding it to the figure in third column multiplied by 12. If this total matches the total given in last column then the price has not increased and will be part of n.

Posted from my mobile device

KarishmaB

How to solve C (The year with the greatest average (arithmetic mean) revenue per car registered was 2010)?

Thank you for your help!

­Is this definitively the case? To me this does not read like a data sufficiency question. The verbiage seems to be such that "if it can be determined THAT the statement IS true." To me if it's just asking if there's enough information to determine it would say something like "if it can be determined if the statement is true" or something along those lines. Just seeking clarity on this. Is it asking if there's enough information? Or is it asking if the information is there AND that it proves to be true?

­
I agree that there is a difference but both are questioning the sufficiency. I did notice the use of 'that' but it doesn't change what we need to do.

Q 1. For each statement, select Yes if it can be determined from the information provided whether the statement is true. 

Asks you whether you can determine whether the statement is true or false. Do you have enough data to determine its veracity?

Q 2. For each statement, select Yes if it can be determined from the information provided that the statement is true. 

Asks you whether you can determine that the information is true. It is not asking us whether the information is true. It is asking us whether we can determine that the information is true. So essentially it is telling us that the information is true. It is asking us whether we can figure this out with the data available to us. 
For us, sufficiency is all we need to establish. We do not need to check whether it is actually true.

­If, for exactly one of the years 2000 through 2013, there was steady rain from 7:00 in the morning (07:00) until 7:00 in the evening (19:00) on the day of the car show, that year was most likely 2004. => Yes

2004 has the fewest cars registered on site, which is probably caused by the all-day rain


The preregistration and on-site registration fees for the car show in 2006 were more than they were for the car show in 2005. => Yes

Sort the "Total car registered"
2006: 95 cars
2005: 92 cars
=>> 2006 > 2005


The year with the greatest average (arithmetic mean) revenue per car registered was 2010. => Yes

Avg revenue = \(\frac{Total-revenue}{Total-cars }\)
=> Can be determined

 ­

­2004 is the ONLY year in which the number of pre-registered cars exceeds the number of cars registered on-site. In every other year, the number of cars registered on-site was at least 50% larger than the number of pre-registered cars -- and in many years, the number of cars registered on-site was about double the number of pre-registered cars.

So 2004 is a glaring exception. What could explain that?

Well, if it was raining all day, people probably wouldn't show up that day to register on-site. Sure, maybe rain in the forecast lowered the number of pre-registrations a bit, but it's likely that many people would have pre-registered before they knew about the rain. (Also, notice that the statement doesn't say anything about the rain being FORECASTED, so we cannot assume that people knew about the rain in advance.)

More importantly, there's absolutely no reason to think that the rain happened in any other year besides 2004. Does the table PROVE that it rained in 2004? Of course not, but that's not what's asked. 2004 is the only year for which there is EVIDENCE of rain, so if it did rain one of those years, that year was most likely 2004.

As for the averages: you know that the average in 2010 is roughly $14, so you could just do some estimation. For example, for the year 2000, 16*14 = 16*(10+4) = 16*10+16*4 -- it's pretty easy to see that this will be more than $180, so we know the average for that year is actually much less than 14. For any that are close, you can use the calculator.

We know that whatever we are given in question we should take it as such whether it is right or wrong in the real world. So as per this logic we are given in this question that
"some people chose not to preregister their cars because preregistration fees were not refundable and they knew they would not attend the show if rain was forecasted"
Based on this statement we should look at which year the pre-registration is the lowest instead of looking at the on-site registration numbers because on-site numbers don't have any correlation with the probability of having rain as per the given statement in the question.
Is there any wrong in my reasoning, please explain anyone.

­
Although the fee for preregistering a car was less than the fee for registering a car on-site, some people chose not to preregister their cars because preregistration fees were not refundable and they knew they would not attend the show if rain was forecasted.

We are given that they chose to not pre-register even though it was cheaper because they did not know whether they will be able to attend (they would not bring their cars if rain were forecast that day)
But if they registered on the spot, they would be able to take a call on whether they should or not based on whether rain was forecast that day. GMAT will expect you to understand this.

­correct me if i am wrong, but if i determine that the statement is not true, it will be a negative case scenario of whether i can determine that the statement is true. I believe that "that" is used with determine to ascertain a fact and "whether" is used with determine to decide between two.

an example i found off the internet:
"We know he can reach the jar because we have determined that he is taller than one metre eighty."
"We will know if he can reach the jar when we have determined whether he is taller or shorter than one metre eighty."

Can somebody confirm?­

KarishmaB - for question 1, the passage only mentions forecast (if it was forecasted that it would rain and it did in fact rain then one expects the # of pre registrations to go down). However, Q1 asks if it actually rained or not, which I believe we cannot infer.

Could you please explain?­

The question is not whether the statement is true but if it can be determined whether the statement is true.

Say the answer is 'No'.
Have you been able to determine whether the statement is true? => Surely yes, you have determined that the statement is not true.

Adding some more details on if the word is THAT and not whether. I missed out on the actual question.
With whether changing to that, I would agree it becomes more of a Yes/No question, and not merely Data Sufficiency question.­­

I wouldn't agree that this is a data sufficiency kind of question. Stem says - "select Yes if it can be determined from the information provided that the statement is true. Otherwise, select No."
Now it so happens, that all 3 statements here are true. But if a statement was false, then we would have selected no. We would also have selected no, if we couldn't determine whether the statement was true or false.

The fastest way to approach C, is to realize that the average is a weighted average of the Pre-registrations price and the on-site registrations price. Since the On-Site registrations is costlier, so the year which has the highest ratio of On-site registrations to Pre-registrations would have the highest average. We can quickly see that 90/25 is much more than 3 which none of the years achieve.

Please explain first point.

KarishmaB here all the choices are numerically true but what if the values in the statements were NOT TRUE, then how would we answer the question about whether we can determine if the answer is true? Would we select yes/ no. I am aware that we would select no if the data cannot be determined from given info but I only want to know what would we do if the values in the statements were not true?

­Is this the case? Request if anyone can share the Orig explanation.

Hi,
You have mentioned that for third we dont have to solve because we can tick 'yes' if we are able to infer from data.
But the Q says choose yes if you can determine from data that answer is true. If it is not true (which we discover after solving - implying that year doesnt has highest avg) then wouldnt we have to mark false?

Also for 2nd Q is it asking total fees or fees per car?

Pls someone clarify Averages Q