Asshme that adults have IQ scores that are normally distributed with a mean of 103.1 and a standard deviation 15.6. Find the first quartile Q1, which is the IQ score separating the bottom 25% from the top 75%.(Draw a graph) The first quartile is______(round one decimal as needed) 2)Assume that adults have IQ scores that are normally distributed with a mean of 99.2 and a standard deviation of 21.9. Find the probability that a randomly selected adult has an IQ greater than 136.3.(Draw a graph) The probability that a randomly selected adult from this group has an IQ greater than 136.3 is_____(Round to 4 decimal places as needed)

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1) Asshme that adults have IQ scores that are normally distributed with a mean of 103.1 and a standard deviation 15.6. Find the first quartile Q1, which is the IQ score separating the bottom 25% from the top 75%.(Draw a graph)

The first quartile is______(round one decimal as needed)

2)Assume that adults have IQ scores that are normally distributed with a mean of 99.2 and a standard deviation of 21.9. Find the probability that a randomly selected adult has an IQ greater than 136.3.(Draw a graph)

The probability that a randomly selected adult from this group has an IQ greater than 136.3 is_____(Round to 4 decimal places as needed)

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