a fish tank at the shedd aquarium has a total of 11 fish there are 5 clownfish 2 dartfish and 4 butterfish if a biologist reaches a net into the tank and pulls out a random fish what's the probability shell pull out a butterfish

the answer is d. (1.2, -4.7) on edgn

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8 2/3 is the answer

step-by-step explanation: just use a calculator

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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