one par were involved in a car drivers are randomly selected, what probability of getting 3 or more who were involved in a car accident last year? A) 0.393 C) 0.094 B) 0.604 D) 0.906 12) The probability that a house in an urban area will develop a leak is 5%. If 20 houses are randomly selected, what is the mean of the number of houses that developed leaks? (Special formula) B) 1.5 A) 0.5 C) 1 D) 2 13) A quiz consists of 620 true or false questions. If the student guesses on each question, what is the standard deviation of the number of correct answers, approximatelly? (Special formula) A) 17.6068169 C) 12.4498996 B) 2 D) 0 1

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...
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one par
were involved in a car
drivers are randomly selected, what
probability of getting 3 or more who were
involved in a car accident last year?
A) 0.393
C) 0.094
B) 0.604
D) 0.906
12) The probability that a house in an urban area will
develop a leak is 5%. If 20 houses are randomly
selected, what is the mean of the number of houses
that developed leaks? (Special formula)
B) 1.5
A) 0.5
C) 1
D) 2
13) A quiz consists of 620 true or false questions. If the
student guesses on each question, what is the
standard deviation of the number of correct
answers, approximatelly? (Special formula)
A) 17.6068169
C) 12.4498996
B) 2
D) 0
1
Transcribed Image Text:one par were involved in a car drivers are randomly selected, what probability of getting 3 or more who were involved in a car accident last year? A) 0.393 C) 0.094 B) 0.604 D) 0.906 12) The probability that a house in an urban area will develop a leak is 5%. If 20 houses are randomly selected, what is the mean of the number of houses that developed leaks? (Special formula) B) 1.5 A) 0.5 C) 1 D) 2 13) A quiz consists of 620 true or false questions. If the student guesses on each question, what is the standard deviation of the number of correct answers, approximatelly? (Special formula) A) 17.6068169 C) 12.4498996 B) 2 D) 0 1
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