In a certain Lake a one-year-old bluegill fish is 3 inches long while I look for you blue GloFish is 6.6 inches long assuming the role that gray can be approximated by a linear equation to write an equation in slope intercept form for the length of a blue do fish in inches for 2 years then use the equation to determine the age of a 9 inch bluegill

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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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step-by-step explanation:

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x