(a)
To find: the probability that no greater than fifteen of them are in control of left-brain language.
(a)
Answer to Problem 13RE
0.17
Explanation of Solution
Given:
Calculation:
Suppose
L= Language skills reside on the left side of the brain.
R = Language skills are on the right side of the brain.
Let X be the number of individuals with control of left-brain language.
X is binom (25,0.8)
Probability that no more than 15 have left brain language control
There is a possibility of 1.7 percent that 15 have left brain language
(b)
To find: the probability of no one having two-sided control of language.
(b)
Answer to Problem 13RE
0.59
Explanation of Solution
Given:
Calculation:
Let X be number of students with two-sided language control.
X is binom (5, 0.1)
Probability that no one has two-sided language control
There is 59% possibility that no one has two-sided language control.
(c)
To find: the amount that of type would expect to find.
(c)
Explanation of Solution
1200 is the number of students in a class.
The expected number of left-sided language control students is
= 1200(0.8) =960
The expected number of students with language control on the right side is
1200(0.1) = 120
The expected number of double-sided language control students is
1200(0.1) = 120
(d)
To find: The mean and standard deviation of the number of such freshmen who can be right-brained in language skills can be found.
(d)
Answer to Problem 13RE
Mean = 120
Standard Deviation = 10.39
Explanation of Solution
Given:
Formula used:
Calculation:
Mean number of students with Right-brained in language ability is
1200(0.1)
=120
Standard deviation is
(e)
To find out: there could be accurate brain language control for the number of students in the freshman class.
(e)
Explanation of Solution
Using the rule
(for 1 standard deviation) The number of students with right regulation of brain language is
(for 2 standard deviation) The number of students with right regulation of brain language is
(for 3 standard deviation) The number of students with correct regulation of brain language is
Chapter PIV Solutions
Stats: Modeling the World Nasta Edition Grades 9-12
Additional Math Textbook Solutions
Statistics for Business and Economics (13th Edition)
Basic Business Statistics, Student Value Edition
Introductory Statistics
Statistics for Psychology
Statistical Reasoning for Everyday Life (5th Edition)
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