A seagull flies 50 feet above sea level. A dolphin swims 20 feet below sea level. Which animal is closest to sea level? Be sure to explain WHY.

A dolphin because -20 is closer to 0 than 50 is to 0.

The dolphin is closest.

Step-by-step explanation:

Since we are discussing absolute value and not negative/positive, you're looking for the number closest to 0. The seagull would be farther since 50>20.

The dolphin is closest to sea level, which is 0.

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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