• Let X be the number of females out of 200 that pass away before reaching the age of 90. Describe the distribution of X and its parameters: X Select an answer (n Use the random variable notation to symbolically express the probability that at least 140 females out of 200 pass away before reaching the age of 90: Select an answer Let Y be a normal variable that will be used to approximate the probability in question. Find the parameters of Y (round the answers to 2 decimal places): Y Select an answer Use the random variable notation to symbolically express the approximate probability that at least 140 females out of 200 pass away before reaching the age of 90: Select an answer • Use the correction for continuity: p = Select an answer • Find the probability (round the answer to 4 decimal places):

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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According to an SSA study, around 32% of 65-year old women will live to at least 90. An insurance company
has a part of its portfolio made of life insurance policies sold to 65-year old women. Based on the SSA study
the insurance company expects that 68% of 65-year old women will pass away before reaching the age of
90. A simple random sample of 200 is taken. Use the normal approximation along with the continuity
correction factor to find the probability that at least 140 women in the sample will pass away before
reaching the age of 90.
• Let X be the number of females out of 200 that pass away before reaching the age of 90. Describe
the distribution of X and its parameters:
X Select an answer (n=
Use the random variable notation to symbolically express the probability that at least 140 females
out of 200 pass away before reaching the age of 90:
Select an answer
• Let Y be a normal variable that will be used to approximate the probability in question. Find the
parameters of Y (round the answers to 2 decimal places):
Y~ Select an answer (fe
• Use the correction for continuity:
• Use the random variable notation to symbolically express the approximate probability that at least
140 females out of 200 pass away before reaching the age of 90:
Select an answer ✓
P
Select an answer ✓
• Find the probability (round the answer to 4 decimal places):
Transcribed Image Text:According to an SSA study, around 32% of 65-year old women will live to at least 90. An insurance company has a part of its portfolio made of life insurance policies sold to 65-year old women. Based on the SSA study the insurance company expects that 68% of 65-year old women will pass away before reaching the age of 90. A simple random sample of 200 is taken. Use the normal approximation along with the continuity correction factor to find the probability that at least 140 women in the sample will pass away before reaching the age of 90. • Let X be the number of females out of 200 that pass away before reaching the age of 90. Describe the distribution of X and its parameters: X Select an answer (n= Use the random variable notation to symbolically express the probability that at least 140 females out of 200 pass away before reaching the age of 90: Select an answer • Let Y be a normal variable that will be used to approximate the probability in question. Find the parameters of Y (round the answers to 2 decimal places): Y~ Select an answer (fe • Use the correction for continuity: • Use the random variable notation to symbolically express the approximate probability that at least 140 females out of 200 pass away before reaching the age of 90: Select an answer ✓ P Select an answer ✓ • Find the probability (round the answer to 4 decimal places):
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