1,justin rides his bicycle 2.5 kilometers to school. luke walks 1,950 meters to school. how much farther does justin ride to school than luke walks to school? explain
a.550 meters
b.55 meters
c.55 kilometers
d. 550 kilometers
2.the length of a room is 10 1/2 feet. what is the length of the room in inches? explain
a.132 inches
b. 126 inches
c. 121 inches
d. 22 1/2 inches

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.

click to let others know, how is it

0.0

0 votes

1

report

read more on -

step-by-step explanation:

i would you but i don't under stand the qustion

step-by-step explanation: