SOLUTION: HELP!!!!! The mean ACT math score in 2001 was 20.7, with an approximate standard deviation of 6. The approzimate percentage of students that scored above 26.7 on the math portion

Question 144245: HELP!!!!!
The mean ACT math score in 2001 was 20.7, with an approximate standard deviation of 6. The approzimate percentage of students that scored above 26.7 on the math portion of the ACT in this year was
a. 16%
b. 68%
c. 34%
d. 2.35%
Please reply back as soon as you can, thanks so much
Answer by nabla(475) (Show Source): You can put this solution on YOUR website!
50% of the scores lie below the mean which is 20.7. 20.7+6=26.7 so we are asking what percentage of scores exist above one standard deviation from the mean. In an equation we would get:
100%-(50%+34%)=100%-84%=16%. a.
RELATED QUESTIONS
Trevor wants to buy a local restaurant. 60% of the business days it's open, the... (answered by stanbon)

11. In 2000, as reported by the ACT Research Service, the mean ACT Math score was 20.7.... (answered by Boreal)

2. In 2000, as reported by ACT Research Service, the mean ACT Math score was μ=20.7. (answered by stanbon)

A study was conducted on students from a particular high school over the last 8 years.... (answered by ewatrrr)

A study was conducted on students from a particular high school over the last 8 years.... (answered by Theo)

The ACT exam math section scores are normally distributed with mean 18 and standard... (answered by stanbon)

Amanda took the SAT and scored 680 on the mathematics part. The distribution of SAT math... (answered by jim_thompson5910)

Ed earned 88 on his math midterm and 84 on his english midterm. In his math class the... (answered by stanbon)