I think the answer would be -2.5 because 0-5=-5 and 4-2=2 you subtract the perfect points X1-x2 with y2-y1
For this Q:
mean=31
st.dev.=0.8
x=32
Calculate z-score:
z=(x-m)/s = (32-31)/0.8=1.25
This z-score value corresponding to the probability of 0.8944
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Answer:
9/64
Step-by-step explanation:
For similar triangles, the ratio of areas is the square of the ratio of corresponding sides.
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The ratio of areas is (3/8)² = 9/64.
