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Please follow rules for posting questions. Post is locked
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Formatted the question and unlocked the topic.
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Can someone pls explain the 3rd part?
Isn't Split Foyer=3/4 > ranch=3/5
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ADARSHREDDY1
Can someone pls explain the 3rd part?
Isn't Split Foyer=3/4 > ranch=3/5
Answer for Ratio of mode number of bathrooms to mode number of bedrooms
­They are asking for mode (the number in a data set that appears the most number of times).

Mode of Ranch (Bathrooms) = 3
Mode of Ranch (Bedrooms) = 4

Ratio of mode number of bathrooms to mode number of bedrooms = 3:4 = 0.75

Mode of Split Foyer (Bathrooms) = Since 1 and 1.5 both appear 2 times, this set has 2 modes (Bimodal distribution- I just googled it). Im stuck here as well.

Although I did find out the ratio of both the possibilities (using 1 and 1.5 in the Ratio of mode number of bathrooms to mode number of bedrooms)

Case 1 - Mode of Split Foyer (Bathrooms) = 1

Case 2 -  Mode of Split Foyer (Bathrooms) = 1.5

Mode of Split Foyer (Bedrooms) = 

Case 1 - Ratio of mode number of bathrooms to mode number of bedrooms [where Mode of Split Foyer (Bathrooms) = 1]  = [b]1:3 = 0.33 

Case 2 - Ratio of mode number of bathrooms to mode number of bedrooms [where Mode of Split Foyer (Bedrooms) = 1.5] = [b]1.5:3 = 1:2 = 0.50


0.75 (Ranch) > 0.33 (Split Foyer: Case 1)

0.75 (Ranch) > 0.50 (Split Foyer: Case 2)

So Ratio of modes under Ranch > Ratio of modes under Split Foyer in all cases.

I couldn't get this right in the first go. I think this is the logic. Please correct me if I am wrong.

 
­The data set of the split foyer's bathroom has bimodal distribution since two modes are there 1 and 1.5, and for each of them, the ratio is higher for the ranch. I agree with your solution.
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­Can someone explain q1 & q2. Not able to understand on what basis do choose the answer.
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­In OG, for R03, it says Mode numbers are:
                                                   Ranch                                                 Split
Mode number Bath             3 (for 3 baths)                                        2 (for each of 1 and 1.5 baths)
Mode number bed              3 (for 4 beds)                                         3 (for 3 beds)
Ratio                                 3:3                                                        2:3

Does it mean "Mode number" is different from "Mode"?? Anyone can help to clarify?­
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Quote:
 
3. Ratio of mode number of bathrooms to mode number of bedrooms­: Sort the table by style and check modes for each category.
Mode number of bathrooms: Ranch - 3, and Split Foyer - 1 and 1.5
Mode number of bedrooms: Ranch - 4, and Slit Foyer - 4
Thus, mode number of bathrooms to mode number of bedrooms = > Ranch - 3/4 and Split Foyer - 1/3 or 1.5/3
3/4 is greater than both 1/3 and 1.5/3....Ranch
­chetan2u Isn't the mode number of bedrooms for Slit Foyer - 3?
Houses K,H and A have the number of bedrooms as 3. While only houses L and F have 4 bedrooms.
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reed990
­In OG, for R03, it says Mode numbers are:
                                                   Ranch                                                 Split
Mode number Bath             3 (for 3 baths)                                        2 (for each of 1 and 1.5 baths)
Mode number bed              3 (for 4 beds)                                         3 (for 3 beds)
Ratio                                 3:3                                                        2:3

Does it mean "Mode number" is different from "Mode"?? Anyone can help to clarify?­
­
chetan2u GMATNinja MartyTargetTestPrep Can you help with this solution given by OG?

How do we identify if the Q is asking for mode number or "mode" specifically? I am a bit confused
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Median age should be Ranch greater, I believe. Am I missing something?­
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Quote:
 
3. Ratio of mode number of bathrooms to mode number of bedrooms­: Sort the table by style and check modes for each category.
Mode number of bathrooms: Ranch - 3, and Split Foyer - 1 and 1.5
Mode number of bedrooms: Ranch - 4, and Slit Foyer - 4
Thus, mode number of bathrooms to mode number of bedrooms = > Ranch - 3/4 and Split Foyer - 1/3 or 1.5/3
3/4 is greater than both 1/3 and 1.5/3....Ranch
­chetan2u Isn't the mode number of bedrooms for Slit Foyer - 3?
Houses K,H and A have the number of bedrooms as 3. While only houses L and F have 4 bedrooms.

Hi
You are correct and that’s a typo. It should be 4.

Next, I am yet to see ‘mode number’ in questions, it is almost always mode.

But may be they meant number of times mode comes looking at the OG solution.

But ‘mode number’ is a bit ambiguous term if it actually means what OG points to.
One could take mode number to be ‘how many modes are there’ or ‘how many times mode is repeated’ or simply ‘mode’ itself.

Posted from my mobile device
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Blackcrow1972
Median age should be Ranch greater, I believe. Am I missing something?­
 
­Age means Older, so as Median Split was built before, it has more age.
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chetan2u
Freddy12
Quote:
 
3. Ratio of mode number of bathrooms to mode number of bedrooms­: Sort the table by style and check modes for each category.
Mode number of bathrooms: Ranch - 3, and Split Foyer - 1 and 1.5
Mode number of bedrooms: Ranch - 4, and Slit Foyer - 4
Thus, mode number of bathrooms to mode number of bedrooms = > Ranch - 3/4 and Split Foyer - 1/3 or 1.5/3
3/4 is greater than both 1/3 and 1.5/3....Ranch
­chetan2u Isn't the mode number of bedrooms for Slit Foyer - 3?
Houses K,H and A have the number of bedrooms as 3. While only houses L and F have 4 bedrooms.
Hi
You are correct and that’s a typo. It should be 4.

Next, I am yet to see ‘mode number’ in questions, it is almost always mode.

But may be they meant number of times mode comes looking at the OG solution.

But ‘mode number’ is a bit ambiguous term if it actually means what OG points to.
One could take mode number to be ‘how many modes are there’ or ‘how many times mode is repeated’ or simply ‘mode’ itself.

Posted from my mobile device
­is there a quicker way to solve problems like these? 
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Mode number of bathrooms in Split Foyer is 1.5 and 1. Here in this case its fine as both the ratios (1.5/4 and 1/4) are lower than 3/4. What if one of ratios were higher and another lower? What to do in those cases?
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very tricky question if you are not reading close. the 3rd question is asking for "THE MODE NUMBER" , which, is this case is actually referencing not the actual mode value, but the number of times the actual mode number appears. quite tricky, although even if you just use the regular mode, you will arrive at the right answer.

THIS is a high quality question and i agree with the solution.
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KarishmaB Bunuel Is mode number and mode different?
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MalachiKeti
KarishmaB Bunuel Is mode number and mode different?

Couldn't tell you. Never heard of 'mode number' before. Neither Review nor OG mentions it either. Let's hope we don't see it on the actual test. What to do if you do? Check for both -- mode and the number of times it appears. Hopefully there is no conflict. Beyond this, I am out of advice. :|
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reed990
­In OG, for R03, it says Mode numbers are:
Ranch Split
Mode number Bath 3 (for 3 baths) 2 (for each of 1 and 1.5 baths)
Mode number bed 3 (for 4 beds) 3 (for 3 beds)
Ratio 3:3 2:3

Does it mean "Mode number" is different from "Mode"?? Anyone can help to clarify?­

I was confused by this, too, but I don't think they're saying mode number. They're saying mode number of bathrooms/bedrooms. "number" refers to the "number of bathrooms" and "number of bedrooms" (as the column names suggest), not to the mode. I think the solution is just an error (shocking!).
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