The work for one student's problem multiplying two binomials is shown below. However, she came up with the wrong solution. Identify the step where she makes her first error.

it is true

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all the combinations add up i used   calculator

hiking down a winding trail.

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hello,

b) 62.47% of the students are between 14 and 18 years old.

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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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