Question

On average, indoor cats live to 12 years old with a standard deviation of 2.7 years. Suppose that the distribution is normal. Let X = the age at death of a randomly selected indoor cat. Round answers to 4 decimal places where possible.

c. The middle 50% of indoor cats' age of death lies between what
two numbers?

Low: __ years

High: __ years

Answer #1

On average, indoor cats live to 15 years old with a standard
deviation of 2.7 years. Suppose that the distribution is normal.
Let X = the age at death of a randomly selected indoor cat. Round
answers to 4 decimal places where possible.
a. What is the distribution of X? X ~ N(,)
b. Find the probability that an indoor cat dies when it is between
10.2 and 11.7 years old.
c. The middle 30% of indoor cats' age of...

On average, indoor cats live to 16 years old with a standard
deviation of 2.6 years. Suppose that the distribution is normal.
Let X = the age at death of a randomly selected indoor cat. Round
answers to 4 decimal places where possible.
a. What is the distribution of X? X ~ N(,)
b. Find the probability that an indoor cat dies when it is between
16.2 and 18.4 years old.
c. The middle 40% of indoor cats' age of...

On average, indoor cats live to 13 years old with a standard
deviation of 2.4 years. Suppose that the distribution is normal.
Let X = the age at death of a randomly selected indoor cat. Round
answers to 4 decimal places where possible.
a. What is the distribution of X? X ~ N (___,___)
b. Find the probability that an indoor cat dies when it is between
13.3 and 16.2 years old. ____
c. The middle 40% of indoor cats'...

The probability that a randomly selected 1-year-old male feral
cat will live to be 2 years old is 0.97059. (a) What is the
probability that two randomly selected 1-year-old male feral cats
will live to be 2 years old? (b) What is the probability that
five randomly selected 1-year-old male feral cats will live to be
2 years old? (c) What is the probability that at least one of
five randomly selected 1-year-old male feral cats will not live to...

The average student loan debt for college graduates is $25,800.
Suppose that that distribution is normal and that the standard
deviation is $11,800. Let X = the student loan debt of a randomly
selected college graduate. Round all probabilities to 4 decimal
places and all dollar answers to the nearest dollar.
a. What is the distribution of X? X ~ N ( _ , _ )
b Find the probability that the college graduate has between
$31,750 and $50,200 in...

The average student loan debt for college graduates is $25,600.
Suppose that that distribution is normal and that the standard
deviation is $10,050. Let X = the student loan debt of a randomly
selected college graduate. Round all probabilities to 4 decimal
places and all dollar answers to the nearest dollar. a. What is the
distribution of X? X ~ N( , ) b Find the probability that the
college graduate has between $7,050 and $20,300 in student loan
debt....

The average student loan debt for college graduates is $25,900.
Suppose that that distribution is normal and that the standard
deviation is $10,350. Let X = the student loan debt of a randomly
selected college graduate. Round all probabilities to 4 decimal
places and all dollar answers to the nearest dollar.
a. What is the distribution of X? X ~
N(_______________,_____________)
b Find the probability that the college graduate has between
$30,700 and $45,950 in student loan debt.
c. The...

The average student loan debt for college graduates is $25,350.
Suppose that that distribution is normal and that the standard
deviation is $14,750. Let X = the student loan debt of a randomly
selected college graduate. Round all probabilities to 4 decimal
places and all dollar answers to the nearest dollar.
a. What is the distribution of X? X ~ N( , )
b Find the probability that the college graduate has between
$8,000 and $26,300 in student loan debt....

The average student loan debt for college graduates is $25,850.
Suppose that that distribution is normal and that the standard
deviation is $14,750. Let X = the student loan debt of a randomly
selected college graduate. Round all probabilities to 4 decimal
places and all dollar answers to the nearest dollar.
a. What is the distribution of X? X ~ N(,)
b Find the probability that the college graduate has between
$15,900 and $35,150 in student loan debt.
c. The...

The average number of words in a romance novel is 64,151 and the
standard deviation is 17,400. Assume the distribution is normal.
Let X be the number of words in a randomly selected romance novel.
Round all answers to 4 decimal places where possible.
a. What is the distribution of X? X ~ N(,)
b. Find the proportion of all novels that are between 65,891 and
79,811 words.
c. The 90th percentile for novels is words. (Round to
the nearest word)...

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