The first statistics exam had on both tests. Megan scored 90 on the first exam and...

Question

Question

The first statistics exam had on both tests. Megan scored 90 on the first exam and 78 on the second. They both totaled 168 po

math Statistics-And-Probability

Answer 1

Answer #1

Ans:

z scores for Anna:

z1=(84-68)/16=1

z2=(84-85)/4=-0.25

Total of z scores=1-0.25=0.75 $\approx 0.8$

z scores for Megan:

z₁=(90-68)/16=1.375

z₂=(78-85)/4=-1.75

Total of z scores=1.375-1.75=-0.375 $\approx -0.4$

The total of Anna's z scores is 0.8,which is greater than Megan's total of -0.4

Answer 2

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