You write down the temperatures at different times on one of the match days. time temperature midnight -6°c 4 am -8°c 8 am -4°c noon 7°c 3 pm 6°c 7 pm -2°c what is the difference between the lowest temperature and the highest? °c you record a temperature of 0.75 °c. is this a positive or negative temperature?

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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: