Emma and jackson are their band raise funds for a trip to new york city. they’ve volunteered to call every business owner in their small town to request donations. emma can complete the calls in 6 days if she works alone. jackson can complete the calls in 4 days if he works alone. to complete the task, emma and jackson are going to work together for the same amount of time. use this information to complete the table.

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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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step-by-step explanation:

113.1

step-by-step explanation:

v=4

3πr3=4

3·π·33≈113.09734