Type the correct answer in the box. round your answer to the nearest whole number.
if the current trend of registration continues, there will be approximately [ ]participants registered 10 days after registration opens.

this above is part b. i need with filling in the blank. will give 15 points for . it's for plato. i'm going to add an attachment for part a and the work i have for part a. asap.

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: