5. IQ Some IQ tests are standardized to a Normal model, with a mean of 100 and a standard deviation of 15. a) Draw the model for these IQ scores. Clearly label it, showing what the 68-95-99.7 Rule predicts. b) In what interval would you expect the central 95% of IQ scores to be found? c) About what percent of people should have IQ scores above 115? d) About what percent of people should have IQ scores between 70 and 85? e) About what percent of people should have IQ scores above 130?
5. IQ Some IQ tests are standardized to a Normal model, with a mean of 100 and a standard deviation of 15. a) Draw the model for these IQ scores. Clearly label it, showing what the 68-95-99.7 Rule predicts. b) In what interval would you expect the central 95% of IQ scores to be found? c) About what percent of people should have IQ scores above 115? d) About what percent of people should have IQ scores between 70 and 85? e) About what percent of people should have IQ scores above 130?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
I need help answering 26. (a-e)
Transcribed Image Text:in Exercise 17
rd deviation of
will weigh at
nder) that
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andard devia-
a pound. Find
ces for all the
=rcise 18, recall
th a standard
speeding,
c) About what percent of autos should get more
d) About what percent of cars should get between 31 and
37.2 mpg?
e) Describe the gas mileage of the worst 2.5% of all cars.
26. IQ Some IQ tests are standardized to a Normal model, with a
mean of 100 and a standard deviation of 15.
a) Draw the model for these IQ scores. Clearly label it, showing
what the 68-95-99.7 Rule predicts.
b) In what interval would you expect the central 95% of IQ
scores to be found?
c) About what percent of people should have IQ scores above
115?
d) About what percent of people should have IQ scores between
70 and 85?
e) About what percent of people should have IQ scores
above 130?
he pic
here are th
togra
the 100 reads. Do
Normal mode here?
20+
15
32. Car spee
# of cars
10
5
0.0
15.0
22.5
30.0
Speed (mph),
O
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