# Question: Assume that IQ scores follow a normal distribution with a

Assume that IQ scores follow a normal distribution with a mean of 100 and a standard deviation of 16. Use the empirical rule for normal distributions to answer the following questions.

a. What percentage of people score between 84 and 116?

b. What percentage of people score less than 68?

a. What percentage of people score between 84 and 116?

b. What percentage of people score less than 68?

## Answer to relevant Questions

The average rent in a city is $1,500 per month with a standard deviation of $250. Assume rent follows the normal distribution. Use the empirical rule for normal distributions to answer the following questions. a. What ...Let X be normally distributed with mean µ = 2.5 and standard deviation σ = 2>a. Find P(X>7.6)>b. Find P(7.4 ≤ X ≤ 10.6)>c. Find x such that P(X>x) = 0.025>d. Find x such that P(x ≤ X ≤ 2.5) = 0.4943>The weight of turkeys is normally distributed with a mean of 22 pounds and a standard deviation of 5 pounds. a. Find the probability that a randomly selected turkey weighs between 20 and 26 pounds. b. Find the probability ...Recent research suggests that Americans make an average of 10 phone calls per day (CNN , August 26, 2010). Let the number of calls be normally distributed with a standard deviation of 3 calls. a. What is the probability that ...A new car battery is sold with a two-year warranty whereby the owner gets the battery replaced free of cost if it breaks down during the warranty period. Suppose an auto store makes a net profit of $20 on batteries that stay ...Post your question