Jan left her home to go on a bike ride. The graph describes her ride. A) what was her speed from C to D

•1km/min
•0.8km/min
•1.875km/min
•0.53km/min

B) when was her speed equal?

•AB and BC
•CD and DE
•AB and CD
•Her speed was never equal at any part of her ride

C) when was she riding home?

•AB
•BC
•CD
•DE

bull

step-by-step explanation:

chiken

step-by-step explanation:

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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