Question: please can you help me question 18 chapter 6 thanks! d . If the state college only accepts students from the top 40% of the

please can you help me question 18 chapter 6 thanks!

d . If the state college only accepts students from the top 40% of the SAT distribution , what is the mini- mum SAT score needed to be accepted ? 18. According to a recent report , people smile an average of Me = 62 time per day . Assuming that the distribu - tion of smiles is approximately normal with a standard deviation of o = 18 , find each of the following values 2 . What proportion of people smile more than 80 times a day ? b . What proportion of people smile at least 50 times a day

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