alleryStart learning →On a final exam, 39 percent of students scored less than 75. What percent scored higher than 75?
A61 percent
B39 percent
C50 percent
D78 percent
Answer & Solution
Correct answer: A. 61 percent
1. Every student either scored below 75 or above it, so the two shares must add to 100 percent.
2. The share below 75 is 39 percent.
3. So the share above is 100 minus 39.
4. That leaves 61 percent scoring higher than 75.
_Source: OpenStax High School Statistics (CC BY 4.0), section 6.2 Using the Normal Distribution_
Keep practising The Normal Distribution
Browse all The Normal Distribution questions for Praxis Core (Teaching), or explore more Mathematics topics.
Related questions
Walk the z-scale left to rightSwipe each z-score to its sideKnock out the z-score mythsDrop each trait into the right curveLine up three tiles that agreeA coin is flipped 100 times. The number of heads has a mean of 20 and a standard deviationIn a sample of 100 cars the number of faulty cars has a mean of 10 and a standard deviatioA doctor reports that a patient's blood pressure has a z-score of 1.75. Which reading is c