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sergiy2304 [10]
3 years ago
5

A pond is freshly stocked with 6 brown trout and 18 lake trout. The first fisherman in the area catches and releases a trout. He

catches another trout a while later. What is the probability that the fisherman caught lake trout each time?
A.1/16

B.1/8

C.5/92

D.5/96
Mathematics
2 answers:
Andreas93 [3]3 years ago
8 0

Number of brown trout = 6

Number of lake trout = 18

Total number of trouts = 6+18=24

Probability to catch a lake trout first time = \frac{18}{24}

As the fisherman let the trout go, so probability for the second time is =

\frac{18}{24}

Hence, the probability becomes=

\frac{18}{24}\times\frac{18}{24}=\frac{324}{576}

= \frac{9}{16}

The probability to find the brown trout is \frac{1}{16}

as , \frac{6}{24}\times\frac{6}{24}=\frac{36}{576}

= \frac{6}{96}=\frac{1}{16}

Jet001 [13]3 years ago
5 0

Answer:

9/16

Not given in the options.

Step-by-step explanation:

Probability is the number of possible outcome expressed as a fraction of the total outcome.

Number of brown trout = 6

Number of lake trout = 18

Total number of trout = 18 + 6 = 24

Probability of picking a brown trout = 6/24

Probability of picking a lake trout = 18/24

The probability of picking a lake trout twice (with replacement)

= 18/24 × 18/24

= 9/16

Not given in the options.

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