PS.9
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Last updated over 4 years ago
5 questions
1
A set of test scores are normally distributed with a mean of 300 and a standard deviation of 18. What percent of the scores are between 264 and 300?
A set of test scores are normally distributed with a mean of 300 and a standard deviation of 18. What percent of the scores are between 264 and 300?
1
A set of test scores are normally distributed with a mean of 300 and a standard deviation of 18. What percent of the scores are greater than 318?
A set of test scores are normally distributed with a mean of 300 and a standard deviation of 18. What percent of the scores are greater than 318?
1
The weights of hammers produced in a factory have a mean of 12.2 ounces and a standard deviation 0.08 ounces.
A randomly selected hammer weighs 12 ounces. How many standard deviations is this below the mean?
The weights of hammers produced in a factory have a mean of 12.2 ounces and a standard deviation 0.08 ounces.
A randomly selected hammer weighs 12 ounces. How many standard deviations is this below the mean?
1
The weights of hammers produced in a factory have a mean of 12.2 ounces and a standard deviation 0.08 ounces.
A randomly selected hammer weighs 12.3 ounces. How many standard deviations is this above the mean?
The weights of hammers produced in a factory have a mean of 12.2 ounces and a standard deviation 0.08 ounces.
A randomly selected hammer weighs 12.3 ounces. How many standard deviations is this above the mean?
1
Student A received a score of 445 on a test where the scores are normally distributed with a mean of 450 and a standard deviation of 12. Student B received a score of 170 on a test where the scores are normally distributed with a mean of 175 and a standard deviation of 15. Which student scored better compared to the rest of theirclass?
Student A received a score of 445 on a test where the scores are normally distributed with a mean of 450 and a standard deviation of 12. Student B received a score of 170 on a test where the scores are normally distributed with a mean of 175 and a standard deviation of 15. Which student scored better compared to the rest of their
class?