How to determine uniqueness

[EttevroC]

How would I figure out how many Corvettes were built with the very same selected options that my Vette has?

I know how many Convertibles were built, how Vettes were white, but how would I figure out how many of the convertibles were white with red interiors and 6-speeds...etc?

Thanks to all of the mathematicians out there!

 

[ProEMTPFF]

I'd like to know the same for my 1986 Coupe. Its a two tone with alot of options.

 

[wishuwerehere82]

How would I figure out how many Corvettes were built with the very same selected options that my Vette has?

I know how many Convertibles were built, how Vettes were white, but how would I figure out how many of the convertibles were white with red interiors and 6-speeds...etc?

Thanks to all of the mathematicians out there!

9,749 Convertibles in 1989
5,426 White in both hard top and convertible.
7,139 with red interiors
4,113 with 6-speeds
There's the raw data. How you break down the combinations? Beat's me!

 

[PLRX]

Hope this web page help your needs...


http://www.idavette.net/facts.htm

 

[XLR8]

Extrapolation

Hi Folks.

I have pulled out my trusty "Corvette Black Book" and once again tried to read and utilize the section on "Extrapolation". It is alittle above my limited math background but here goes.

In 1989 there were a total of 26,412 Corvettes built. There were 4113 built with manual transmissions. This is 16% of the total. There were 5426 with the White exterior color. So the number of White Corvettes with manual transmission can be calculated as 16% or 868. You did not specify if your interior was red base leather (6714) or red sport leather (425) so I used the total of 7139 with the red interior, which is 27% of total production. So an extrapolated estimate of the number of white 1989 Corvettes with manual transmission and red interior is 27% of 868 or 234.

This is my best estimate with my limited understanding of "extrapolation". I am going out on a limb here, and hopefully will not get "flamed" too bad by everyone, but I've wanted to calculate the same info about my car and I love to solve a problem.

BTW - if you ever find a better estimate or concrete info please post it so that I can learn how far off (or near) the mark I was.

Good luck!
JAG

 

[Achilles]

JAG, that was the same process I have always used and I haven't heard of a better system yet. I'm sure these estimates are just that...Estimates. But it is probably close. Nice job!

 

[XLR8]

Thanks for letting me know I'm on the right track... I wanted to help, but don't want to steer anyone wrong. :ugh

JAG

 

[SSTibet]

I know one thing for sure about my Corvette... It is the only yellow 1995 Corvette in Turkey...

 

[XLR8]

I know one thing for sure about my Corvette... It is the only yellow 1995 Corvette in Turkey...

Congrats on a TRULY rare Corvette!

JAG

 

[EttevroC]

Thanks XLR8 and everyone else. :blue: I figured that using percentages would be the only formulas available to extrapolate the numbers from the limited data that is available.


Since we Corvette owners are such a dedicated bunch, maybe we could all write GM and ask them to publish such numbers, especially since compared to other vehicles, the Corvette has a relatively small options list. What do you all think?

 

[SSTibet]

EttevroC, I will go for that. But how do we do it as a group so that GM responds to it? Would you be willing to develop a standard matrix for the options that we can fill in for our cars. We could than collect the data base and deliver to GM?

 

[XLR8]

Thanks XLR8 and everyone else. :blue: I figured that using percentages would be the only formulas available to extrapolate the numbers from the limited data that is available.


Since we Corvette owners are such a dedicated bunch, maybe we could all write GM and ask them to publish such numbers, especially since compared to other vehicles, the Corvette has a relatively small options list. What do you all think?

Hi EttevroC.
You may want to check out the publication I used in the calculations, if you don't already have a copy. It is an excellent reference book on Corvette numbers.
Corvette Black Book by Mike Antonick. My copy includes 1953 through 2004 model years but the 2004 data is incomplete due to the fact that 2004 production had not ended when I purchased it.

It includes production number totals as well as breakdowns by coupe, convertible, color, interiors, options and their codes, VINs, engines, etc. It also includes a history section, a glossary of terms etc. It contains the section on extrapolation which I used to come up with the estimate you were looking for. It is handy to have because you can carry it with you to car shows to read interesting facts and figures on any given Corvette you may be looking at.

I purchased my copy from the museum this past summer for about 15 bucks. You might find one on eBay for less than that.

Hope this helps.
JAG

 

[EttevroC]

EttevroC, I will go for that. But how do we do it as a group so that GM responds to it? Would you be willing to develop a standard matrix for the options that we can fill in for our cars. We could than collect the data base and deliver to GM?

I'm sure that GM has a database that includes all the specifics on each car, otherwise they wouldn't be able to send out recall notices. I think one of my wife's relatives used to be a bigwig at GM, I'll see if that person could help and get back to you.

 

[EttevroC]

Hi EttevroC.
You may want to check out the publication I used in the calculations, if you don't already have a copy. It is an excellent reference book on Corvette numbers.
Corvette Black Book by Mike Antonick. My copy includes 1953 through 2004 model years but the 2004 data is incomplete due to the fact that 2004 production had not ended when I purchased it.

It includes production number totals as well as breakdowns by coupe, convertible, color, interiors, options and their codes, VINs, engines, etc. It also includes a history section, a glossary of terms etc. It contains the section on extrapolation which I used to come up with the estimate you were looking for. It is handy to have because you can carry it with you to car shows to read interesting facts and figures on any given Corvette you may be looking at.

I purchased my copy from the museum this past summer for about 15 bucks. You might find one on eBay for less than that.

Hope this helps.
JAG

Thanks, I've seen them around but never purchased one. I'll check it out.

 

[MyOtherCar]

1 Of ???

Hi Folks.

I have pulled out my trusty "Corvette Black Book" and once again tried to read and utilize the section on "Extrapolation". It is alittle above my limited math background but here goes.

In 1989 there were a total of 26,412 Corvettes built. There were 4113 built with manual transmissions. This is 16% of the total. There were 5426 with the White exterior color. So the number of White Corvettes with manual transmission can be calculated as 16% or 868. You did not specify if your interior was red base leather (6714) or red sport leather (425) so I used the total of 7139 with the red interior, which is 27% of total production. So an extrapolated estimate of the number of white 1989 Corvettes with manual transmission and red interior is 27% of 868 or 234.

This is my best estimate with my limited understanding of "extrapolation". I am going out on a limb here, and hopefully will not get "flamed" too bad by everyone, but I've wanted to calculate the same info about my car and I love to solve a problem.

BTW - if you ever find a better estimate or concrete info please post it so that I can learn how far off (or near) the mark I was.

Good luck!
JAG

Okay JAG, I attempted to use your theory of extrapolation utilizing data for my '92 gleaned from The Black Book. The results, I have to ask, ...do they seem plausible??

Total Production: 20,479
Total Coupes: 14,604
Total Converts: 5,875
Total ZR-1: 502 (all 6-speeds)
Yellow: 678 div by 20,479 = 3.31%
6-speed: 5,487 " " = 26.79%
Base Leather Seats: 10,565 " " = 51.59%
Power Pax Seat: 16,179 " " = 79.00%
Delco-Bose/CD 15,199 " " = 74.22%
FX3: 5,840 " " = 28.52%
Less Convertibles: 14,604 " " = 71.31%
Less ZR-1 502 " " = 96.56% (are LT1)

(20,479) (3.31%) = 678 of all production, those that are yellow
(678) (26.79%) = 182 of all yellow, those w/6-speed
(182) (51.59%) = 94 of those w/6-speed # w/Base Leather
(94) (79.00%) = 75 of those, # w/PAX Pwr seat
(75) (74.22%) = 56 of those, # w/Delco Bose /CD
(56) (28.52%) = 16 of those, # w/FX3
(16) (71.31%) = 12 of those, eliminate convertibles
(12) (96.56%) = 12 of those, eliminate ZR1

These calculations result in mine being one of twelve. Possible??, do you think I did the math logically? Any input??
Thanks Y'all, Bill

 

[toby]

Hi Bill. Statistically speaking, your arithmetic is a bit off. Here's why:

You have a ZR-1 (you lucky devil!), so you can't multiply by the fraction of total production that were coupes (because all ZR-1s are coupes), nor can you multiply by the fraction of total production that were 6-speeds (because all ZR-1s are 6-speeds). If we ignore this kind of information, we could come up with some nonsense like estimating that since 28.6% of Corvette production were convertibles, 144 ZR-1s should have been convertibles (502 * 28.6%).

Here's a better estimator:

502 ZR-1 * 3.3% yellow (assuming ZR-1s were available in all the same colors as the rest of Corvette production) = 15 yellow ZR-1s

If ZR-1s were available with and without power seats, Bose, and the other options you used below, feel free to multiply by those fractions, too.

Either way, the final numbers are small and not very different from the ones you got, anyhow.

These estimators are very approximate, to be charitable, and depend on assumptions that can't be tested easily. Using the same method, we could conclude that since 50% of the human population have penises and 50% have vaginas, 25% should have both!

Toby

Okay JAG, I attempted to use your theory of extrapolation utilizing data for my '92 gleaned from The Black Book. The results, I have to ask, ...do they seem plausible??

Total Production: 20,479
Total Coupes: 14,604
Total Converts: 5,875
Total ZR-1: 502 (all 6-speeds)
Yellow: 678 div by 20,479 = 3.31%
6-speed: 5,487 " " = 26.79%
Base Leather Seats: 10,565 " " = 51.59%
Power Pax Seat: 16,179 " " = 79.00%
Delco-Bose/CD 15,199 " " = 74.22%
FX3: 5,840 " " = 28.52%
Less Convertibles: 14,604 " " = 71.31%
Less ZR-1 502 " " = 96.56% (are LT1)

(20,479) (3.31%) = 678 of all production, those that are yellow
(678) (26.79%) = 182 of all yellow, those w/6-speed
(182) (51.59%) = 94 of those w/6-speed # w/Base Leather
(94) (79.00%) = 75 of those, # w/PAX Pwr seat
(75) (74.22%) = 56 of those, # w/Delco Bose /CD
(56) (28.52%) = 16 of those, # w/FX3
(16) (71.31%) = 12 of those, eliminate convertibles
(12) (96.56%) = 12 of those, eliminate ZR1

These calculations result in mine being one of twelve. Possible??, do you think I did the math logically? Any input??
Thanks Y'all, Bill

 

[toby]

Oops -- my mistake. You don't have a ZR-1, you just subtracted them from your calculations. Nice work!

Toby

 

[MyOtherCar]

Hi EttevroC.
You may want to check out the publication I used in the calculations, if you don't already have a copy. It is an excellent reference book on Corvette numbers.
Corvette Black Book by Mike Antonick. My copy includes 1953 through 2004 model years but the 2004 data is incomplete due to the fact that 2004 production had not ended when I purchased it.

It includes production number totals as well as breakdowns by coupe, convertible, color, interiors, options and their codes, VINs, engines, etc. It also includes a history section, a glossary of terms etc. It contains the section on extrapolation which I used to come up with the estimate you were looking for. It is handy to have because you can carry it with you to car shows to read interesting facts and figures on any given Corvette you may be looking at.

I purchased my copy from the museum this past summer for about 15 bucks. You might find one on eBay for less than that.

Hope this helps.
JAG

Available on eBay for about $8 US

 

[XLR8]

Nice job... I looked over your figures and they look ok to me, but as I stated earlier, I am not a mathematician and was using the same Extrapolation calcs you used from the book. It seems logical...

However, I do have a mathematician in the family... one who teaches Calculus, Trig, Advanced Algebra, and an interesting little course called Probability and Statistics. I will try to sit down with her in the near future as our schedules permit and get her to help me with it.

JAG

 

[EttevroC]

Available on eBay for about $8 US

Cool, I'll check eBay out. Thanks!