Answer:
-6 -b
Step-by-step explanation:
I have attached the explanation above. hopefully this will help you
2 i hope this helps ok bye
<span>You are given the scores of an IQ test with a bell shaped distribution and a standard deviation of 18. The percent of people that have an IQ score between 46 and 154 is 60%. The percent of people that has an IQ score less than 64 or greater than 136 is 30%.</span>
67.142 rounded to the nearest ones is 67 cause the .1 is not .5 or greater.