Which statements are true? Check all that apply.
The population density for Montana can be found
using the ratio 1,005,141:145,552.
The population density for Oregon can be found
using the ratio 95,997:3,899,353.
The population density for Hawaii is greater than
the population density for Florida.
The state with the smallest population density is
Oregon.
The state with the smallest population density is
Montana.

; )

step-by-step explanation: ; )

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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: