webassignnet You may need to use the appropriate appendix table or technology to answer this question. IQ scores (as measured by the Stanford-Binet intelligence test) are normally distributed with a mean of 100 and a standard deviation of 16. What percentage of the population has an IQ score between 110 and 140? (Round your answer to the nearest percentage point.) Need Help? 6. [-I4 Points] DETAILS WANEFM7 8.5.044. MY NOTES ASK YOUR TEACHER You may need to use the appropriate appendix table or technology to answer this question. If we model after-tax household income with a normal distribution, then the figures ofa study imply the information in the following table. Assume that the distribution of incomes in each country is normal. mmmmm Mean Household Income $39,000 $23,000 $31,000 $39,000 $28,000 Standard Devlatlon $31,000 $25,000 $31,000 $35,000 $11,000 What percentage of households in Country E are either very wealthy (income at least $75,000) or very poor (income at most $12,000)? (Round your answer to the nearest percent.) ~eee Help? Submit Answer 7. [-I4 Points] WANEFM7 8.5.007. ASK YOURTEACHER You may need to use the appropriate appendix table or technology to answer this question. Z is the standard normal distribution. Find the indicated probability. (Round your answer to four decimal places.) P(0.51 s z s 1.6) Need Help? 8. [-l4 Points] DETAILS WANEFM7 8.5.036. MY NOTES ASK YOUR TEACHER You may need to use the appropriate appendix table or technology to answer this question. LSAT test scores are normally distributed with a mean of 151 and a standard deviation of 6. What score would place you in the top 2% of test-takers? (Round your answer to the nearest whole number.) Need Help? 9. [-l4 Points] DETAILS WANEFM7 8.5.038. MY NOTES ASK YOUR TEACHER You may need to use the appropriate appendix table or technology to answer this question. The mean batting average in a certain baseball league is about 0.260. If batting averages are normally distributed, the standard deviation in the averages is 0.05, and there are 230 batters, what is the expected number of batters with an average of at least 0.400? (Round your answer to two decimal places.) E batters Need Help?