Find the indicated conditional probability using the following two-way table:

Grade

Drive to school

Take the bus

Walk

Sophomore

2

25

3

Junior

13

20

N

Senior

25

5

5

P( Take the bus | Senior ) = [?]

Round to the nearest hundredth.

Enter

y=mx+b

step-by-step explanation:

m slope, b y-intercept

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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where is the diagram? shown below where? ?

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