Yaya says:
IQ Scores have a bell-shaped distribution with a mean of 100 and a standard deviation of 15. What percentage of IQ scores are between 70 and 130?
<span>Solution: </span>130 – 100 = 30 which is 2(15). Thus, 130 is 2 standard deviations to the right of the mean. 100 – 70 = 30 which is 2(15). Thus, 70 is 2 standard deviations to the left of the mean. Since 70 to 130 is within 2 standard deviations of the mean, we know that <span>about 95% of the IQ scores would be between 70 and 130.</span>
Answer:
C. Method of loci
Explanation:
The method of loci is a method of memorizing information by placing each item to be remembered at a point along an imaginary journey. The information can then be recalled in a specific order by retracing the same route through the imaginary journey.
The Development of the Middle Class and Working Class.
D) to gain a greater reputaruin
Answer:
Physics and chemistry
Explanation:
The laws of physics are universal and chemistry is just physics at a atomic and molecular level.