Triangle XYZ has vertex X at(0, 0), vertex Y at (0,4) and vertex]Z at (5,0). Which of the following is closest to the length of YZ?
01
4.2 units
2
6.4 units
3
20 units
4
9 units

whats the

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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d is the answer

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