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28 Jun 2023, 01:30
Kudos
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
95% (00:45) correct
5%
(01:16)
wrong
based on 58
sessions
History
Date
Time
Result
Not Attempted Yet
Jack's toy box contains 13 toy soldiers, 7 model airplanes and 5 dolls. What is the probability that a randomly chosen toy from the box will be either a model airplane or a doll?
A. 35/252
B. 12/25
C. 293/600
D. 20/25
E. 21/25
A. 35/252
B. 12/25
C. 293/600
D. 20/25
E. 21/25
28 Jun 2023, 01:59
Kudos
Bookmarks
Given: Total Toys = 25 (13 TS, 7MA and 5D)
Asked: The probability that a randomly chosen toy from the box will be either a model airplane or a doll.
Solution:
We want to find -> Prob(MA) + Prob(D)
Prob(MA) = \(\frac{7}{25 }\)
Prob(D) = \(\frac{5}{25}\)
Adding both we get = \(\frac{12}{25\\
}\)
Answer: B.
Asked: The probability that a randomly chosen toy from the box will be either a model airplane or a doll.
Solution:
We want to find -> Prob(MA) + Prob(D)
Prob(MA) = \(\frac{7}{25 }\)
Prob(D) = \(\frac{5}{25}\)
Adding both we get = \(\frac{12}{25\\
}\)
Answer: B.
28 Jun 2023, 02:13
Kudos
Bookmarks
To find the probability of randomly selecting a toy that is either a model airplane or a doll, we need to determine the total number of toys that fall into these two categories and divide it by the total number of toys in the box.
The total number of model airplanes and dolls in the box is 7 + 5 = 12.
The total number of toys in the box is 13 + 7 + 5 = 25.
Therefore, the probability of selecting a toy that is either a model airplane or a doll is 12/25.
The correct option is (B) 12/25
The total number of model airplanes and dolls in the box is 7 + 5 = 12.
The total number of toys in the box is 13 + 7 + 5 = 25.
Therefore, the probability of selecting a toy that is either a model airplane or a doll is 12/25.
The correct option is (B) 12/25
