The fact family model represents the relationship between the numbers 8, 7, and 15 How do the numbers compare? 15 is 8 less than 7. 15 is 7 more than 8 . 7 is 15 less than 8 . 7 is 8 more than 15.

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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hit or miss i guess they never miss huh

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you got a boyfriend i bet he doesnt kiss ya