1. for every three girls taking classes at a
martial arts school, there are 4 boys who are taking classes. if there are 236 boys taking classes, predict the number of girls taking classes at the school.

708

Step-by-step explanation:

What I did was multiply 236 by 3 due to

236= amount of boys taking classes

3=taking martial arts school

how am i supposed to answer

step-by-step explanation:

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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step-by-step explanation: