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Full-length FE mock with insightful analytics, weakness diagnosis, and video explanations!
Erjan_S
Joined: 12 Nov 2016
Last visit: 08 May 2018
Posts: 107
Given Kudos: 87
Concentration: Entrepreneurship, Finance
Schools: Stanford MSx"19 (D) Sloan Fellows"19 (D)
GMAT 1: 620 Q36 V39
GMAT 2: 650 Q47 V33
Dropdown 1: strongly positive
Dropdown 2: 0.40
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
54% (01:26) correct
46%
(01:44)
wrong
based on 1482
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During a four-day period, a height measurement and a weight measurement were recorded shortly after delivery for each baby born in a particular hospital. The 19 babies in the study were divided into two groups, Group A and Group B. The chart shows the length, in centimeters (cm), and weight, in kilograms (kg), for each of the 19 babies.
Based on the given information, use the drop-down menus to most accurately complete the following statements.
The correlation between length and weight for the babies in the study is
If a baby with weight less than 3.5 kg were selected at random, the probability that the baby would be a part of Group A is
ID: 100409
IR_IBN00867_img_001.png [ 6.81 KiB | Viewed 20081 times ]
Attachment:
IR_IBN00867_img_001.png [ 6.81 KiB | Viewed 20081 times ]
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Dropdown 1: strongly positive
Dropdown 2: 0.40
Erjan_S
Joined: 12 Nov 2016
Last visit: 08 May 2018
Posts: 107
Given Kudos: 87
Concentration: Entrepreneurship, Finance
Schools: Stanford MSx"19 (D) Sloan Fellows"19 (D)
GMAT 1: 620 Q36 V39
GMAT 2: 650 Q47 V33
16 Nov 2017, 04:57
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It is probably due to structure of GMAT that IR does not count towards total score that there is little interest in IR questions... probably a growing trend for EA acceptance by leading business will change that
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Posted from my mobile device
16 Nov 2017, 05:50
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Erjan_S
During a four-day period, a height measurement and a weight measurement were recorded shortly after delivery for each baby born in a particular hospital. The 19 babies in the study were divided into two groups, Group A and Group B. The chart shows the length, in centimeters (cm), and weight, in kilograms (kg), for each of the 19 babies.
Based on the given information, use the drop-down menus to most accurately complete the following statements.
The correlation between length and weight for the babies in the study is
negligible
strongly positive .
strongly negative
Is there a rule to decide on correlation? What I see here is that two babies with height 47 weigh differently and again at weight 48 and 4 babies with different weights at height 51 where two are much heavier, does not it contradict strong correlation?
Based on the given information, use the drop-down menus to most accurately complete the following statements.
The correlation between length and weight for the babies in the study is
negligible
strongly positive .
strongly negative
Is there a rule to decide on correlation? What I see here is that two babies with height 47 weigh differently and again at weight 48 and 4 babies with different weights at height 51 where two are much heavier, does not it contradict strong correlation?
HiErjan_S,
To find the correlation, observe the overall trend rather than individual values. You have to oberve the overall direction of the given values. In the given example its clear that height and weight are strongly positively correlated.
Check the following link:
https://www.statisticshowto.com/directio ... sociation/
Hope it helps.
