MAth
posted by quita .
Scores of an IQ test have a bell shaped distribution with a mean of 100 and a standard deviation of 19. Use the empirical rule to determine the following.
a.) What % of people has an IQ score between 81 and 119?
Respond to this Question
Similar Questions

Statistics
Hi! I've been stuck on this question for a while. I know that I have to do some sort of 11/k^2 for empirical rule, correct? 
college
1. Which of the following statements are correct? 
Statistics
1. Which of the following statements are correct? 
statistics
The scores on the final exam in a course have approximately a bellshaped distribution. The mean score was 72, the highest score was 99, and the lowest score was 41. Use the value of the range (58) to estimate the value of the standard … 
Statistics
The distribution of scores on a test is moundshaped and symmetric with a mean score of 78. If 68% of the scores fall between 72 and 84, which of the following is most likely to be the standard deviation of the distribution? 
statistics
2. Why is it important to know the mean and standard deviation for a data set when applying the empirical rule? 
statistics
"suppose that IQ scores have a bellshaped distribution with a mean of 97 and standard deviation of 17.Using empirical rule, what percentage of IQ score are less than 46? 
Statistics
Suppose that IQ scores have a bellshaped distribution with a mean of 99 and a standard deviation of 12. Using the empirical rule, what percentage of IQ scores are less than 87? 
statistics
1. Suppose you administered an anxiety test to a large sample of people and obtained normally distributed scores with a mean of 45 and a standard deviation of 4. Do not use the web calculator to answer the following questions. Instead, … 
statistics
Suppose that IQ scores have a bellshaped distribution with a mean of 95 95 and a standard deviation of 18 18 . Using the empirical rule, what percentage of IQ scores are at least 149 149 ?