David has scores of 79, 96, 63, 54 on his algebra tests. Find the score he can make on the
final exam to pass the course with an average of 70, given that the final counts as 3 tests.

good luck on your studies! : )

david edward.

figure c

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hope this .

c

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i think because what else can be a sample of every member

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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