Shawty's like a melody in my head That I can't keep out, got me singin' like
Na-na-na-na, everyday
It's like my iPod stuck on replay, replay-ay-ay-ay

A classic

Step-by-step explanation:

Iyaz - "Replay"

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3

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now this is stuck in my head-

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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