SOLUTION: A three-colour spinner is spun first and a 6-sided die is rolled after it. What is the probability of getting blue and rolling a 4?
A, 1.24% B, 5.56% C, 7.17% D, 9.82%
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-> SOLUTION: A three-colour spinner is spun first and a 6-sided die is rolled after it. What is the probability of getting blue and rolling a 4?
A, 1.24% B, 5.56% C, 7.17% D, 9.82%
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Question 1161630: A three-colour spinner is spun first and a 6-sided die is rolled after it. What is the probability of getting blue and rolling a 4?
A, 1.24% B, 5.56% C, 7.17% D, 9.82% Answer by solver91311(24713) (Show Source):
Two possible answers assuming that the die is standard and fair:
One-third time one-sixth is one-eighteenth. One-eighteenth is a little bigger than one-twentieth which is 5%, so pick the closest answer to 5%. This answer presumes that blue is one of the three colors on the spinner.
If the three-color spinner had mauve, goldenrod, and olive as the three colors, then the probability of blue and a 4 is zero.
There are actually other possibilities as well. What if you had a 3-color spinner that consisted of 51 segments, 30 of which were blue, 13 red, and 8 green? Then you would have a probability of 30/51 times 1/6 or just under 10%.
NEVER assume anything.
John
My calculator said it, I believe it, that settles it
