Hector wants to tend a parcel to Spain. His parcel is a cuboid with dimensions 10cm, 10cm and 40cm. He looks at the prices of two companies, WeGoFast and ParcelsFly. WeGoFast Total cost: Sum, in cm, of the 3 dimensions x £1.20. ParcelsFly Total cost: Volume measured in cm^3 x £0.02. Find the cost of spending the parcel with each company. Give each of your answers in pounds. (£)

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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:

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i think the answer is c sorry if it's wrong