Question 2 from the video on Box Plots. *

A. The data represents 75 student responses.
B. There are more students who exercise between 45 to 75 minutes per day than there are student who exercise between 75 to 90 minutes per day.
C. Half of the students exercise between 45 minutes and 90 minutes each day.
D. The mean number of minutes spent exercising is 75 minutes.

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:

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step-by-step explanation:

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