Question 12 2 pts
Of the shirts produced by a company, 5% have loose threads, 9%
have crooked stitching, and 3.5% have loose threads and crooked
stitching. Find the probability that a randomly selected shirt has
loose threads or has crooked stitching.
Homework Help:
2VF (1): Probabilities using addition rule from values and
from percentages (Links to an external site.) (0:54)
2DG. Probabilities using addition rule (Links to an external
site.) (DOCX)
Group of answer choices
0.5%
14.0%
10.5%
17.5%
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Question 13 2 pts
Randomly select a customer that is happy with the store.
Randomly select a customer who infrequently shops at the store. Are
these events mutually exclusive?
Homework Help:
2DF. Independent versus dependent events; mutually exclusive
and non-mutually exclusive events, complements (Links to an
external site.) (DOCX)
Group of answer choices
Non-mutually exclusive events
Mutually exclusive events
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Question 14 2 pts
In a sample of 800 adults, 228 said that they liked sugar
cereals. Three adults are selected at random without replacement.
Find the probability that all three like sugar cereals.
Homework Help:
2VG: Probabilities of drawing several from many without
replacement, all or none outcomes (Links to an external site.)
(2:16)
2DH. Probabilities of drawing several from many without
replacement, all or none outcomes (Links to an external site.)
(DOCX)
Group of answer choices
9.50%
2.29%
2.31%
3.17%
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Question 15 2 pts
In a sample of 80 adults, 24 said that they would buy a car
from a friend. Three adults are selected at random without
replacement. Find the probability that none of the three would buy
a car from a friend.
Homework Help:
2VG: Probabilities of drawing several from many without
replacement, all or none outcomes (Links to an external site.)
(2:16)
2DH. Probabilities of drawing several from many without
replacement, all or none outcomes (Links to an external site.)
(DOCX)
Group of answer choices
34.00%
2.46%
33.74%
24.60%