Topic
Q:
Se tiene una urna con 7 Pelotas
de color negra 8 de color blanco
y a de color gris. ¿ cual es la pro
bilidad de elegir al azar una pebta
de color negro y una de color gris?
Q:
Se tiene una urna con 7 Pelotas
de color negro, 8 de color blanco
a de color gris. ¿ cual es la pro
ilidad de elegir al azar una pelota
de color negro y una de color gris?
Q:
b. A dice was rolling and it sample is \( S=\{1,2,3,4,5,6\} \)
\[ A=\{2,4,5\} \quad B=\{1,3,4,5,6\} \]
i. \( P(A \cap B) \)
ii. \( P(A \cup B) \)
iii. \( P(A \) complement \( ) \)
Q:
10N 7
\( A \) bag contains 3 green balls and 5 red balls. The balls are placed in a bag and or
chosen at random. Determine the probability that the ball selected is red.
Two events \( A \) and \( B \) are complementary and also \( P( \) not \( A)=0.25 \)
7.2 .1
7.2 .2 Write down the value of \( P(A) \).
Q:
c. Find the probability the firefighter is a female.
\( \mathrm{P}( \) female \( )=\square \) (Round to three decimal places as needed.)
d. Find the probability the glove fits well.
P (well) \( =\square \) (Round to three decimal places as needed.)
e. Find the probability the firefighter is a male and has a poorly-fitting glove.
P (male and poorly-fitting) \( =\square \) (Round to three decimal places as needed.)
Q:
b. Assign reasonable probabilities to the sample points. List the probabilities in the same order as
the sample points found in part a, rounding to three decimal places. Choose the correct answer
below.
A: \( 0.698,0.232 \)
B. \( 0.25,0.25,0.25,0.25 \)
C. \( 0.698,0.232,0.031,0.039 \)
D. \( 0.302,0.768,0.969,0.961 \)
E. \( 0.930,0.070,0.729,0.271 \)
Q:
a. \( A \) and \( B \) are event with \( P(A)=0.2, P(B)=0.16 \) and \( P(A \cap B)=0.04 \)
i. Calculate \( P(A \cup B) \)
i. Explain whatever \( A \) and \( B \) are mutually exclusive events
Q:
b. Use the information in the pie chart to estimate the probability that an American believes the Americar
Dream is either out of reach or pessimistic about reaching it.
The probability is
Q:
a. Use the information in the pie chart to estimate the probability that an American believes he or she has
achieved the American Dream.
The probability is \( \square \).
(Type an integer or a decimal. Do not round.)
Q:
In a certain region, the competition for social networking is between Network A and Network B. According
to a survey, \( 8 \% \) of the region's citizens visit Network A, \( 6 \% \) visit Network B, and \( 3 \% \) visit both Network A
and Network B. Complete parts a through c.
b. Find the probability that a citizen from the region visits either Network A or Network B.
The probability is \( \square \).
(Simplify your answer.)
c. Use your answer to part b to find the probability that a citizen from the region does not visit either
social networking site.
The probability is \( \square \).
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