I don\'t understand can someone help please. AST 311 Homework 2 List, page 2 of

Question

I don't understand can someone help please.

AST 311 Homework 2 List, page 2 of 2 a) Concisely state the distributian of x what is the name of the 1Q range Intelligence Profound Mental Disability Profound Mental Disbty distribution and what are its parameters? Whst is the inivual 1-24 - that is, the unit or thing or item that we are looking at? what is the variable that is being measured in this problem? ls that variable quantitative or categorical? According to the 68-95-997 rule, 68 percent of IQ within +/- 1 standard deviation of the mean for a normal distribution. This corresponds approximately to what Intelligence Classification? Another school wants to serve the needs of the "middle" 99.7 percent of adults. Use the 68-95-997 rule and determine which 115-129 Intelligence Classifications will be EXCLUDED from classes at this 130-144 school. t we are looking at? What is 124Profound Mental Disability 39 Severe Mental Disability 40-54Maderate Mental Disablity 55-69Mild Mental Disability 70-84Borderline Mental Disability 85-114 Average Intelligence b) scores fall c) Bright Moderately gifted 145-159 Highly gifted 160-175 Exceptionally gifted Over 175 Profoundly Gifted

Explanation / Answer

name distribution: distribution by intervals

parameters: IQ range

variable: quantitative

b)

mean +/- standard deviation: 68%

100+15 =115

100-15 = 85

the 68% of this distribution corresponds to IQ between 85 and 115

c)

mean - 3 sigma

mean + 3 sigma

100- 3*15 =55

100 + 3*15 =145

99.7% will be between 55 and 145

IQ excluded will be 1-54 and greater than 146

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