An ad for the new light rail states that its on time 96% of the time. The subway train, which Susie has been taking, has been on time 76 times out 83. Should Susie switch to the light rail? Justify your answer by showing your work.

191 students play sports and ninety-seven 10th graders were surveyed.

step-by-step explanation:

the 3rd on is correct

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.

click to let others know, how is it

0.0

0 votes

1

report

read more on -

step-by-step explanation:

it is not that hard all u have to do is plot the graph

step-by-step explanation: