-
Vincen
- Legendary Member
- Posts: 2898
- Joined: Thu Sep 07, 2017 2:49 pm
- Thanked: 6 times
- Followed by:5 members
Timer
00:00
Your Answer
A
B
C
D
E
Global Stats
\(\{9.4 , 9.9 , 9.9 , 9.9 , 10.0 , 10.2 , 10.2 , 10.5\}\)
The mean and the standard deviation of the \(8\) numbers shown above are \(10\) and \(0.3\) respectively. What percent of the 8 numbers are within \(1\) standard deviation of the mean?
A. \(90\%\)
B. \(85\%\)
C. \(80\%\)
D. \(75\%\)
E. \(70\%\)
Answer: D
Source: GMAT Prep
The mean and the standard deviation of the \(8\) numbers shown above are \(10\) and \(0.3\) respectively. What percent of the 8 numbers are within \(1\) standard deviation of the mean?
A. \(90\%\)
B. \(85\%\)
C. \(80\%\)
D. \(75\%\)
E. \(70\%\)
Answer: D
Source: GMAT Prep