Which type of checking account pays interest on the mean balance of the account during a particular cycle?
A. Minimum balance account
B. Average balance account
C. Free account
оо
D. Cost-per-check account

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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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jk it's 20

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answer: #1 ads up by 8 and i don't know #2