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Karolina [17]
3 years ago
11

Find the area of the shaded region. The graph depicts the standard normal distribution of bone density scores with mean 0 and st

andard deviation 1.

Mathematics
1 answer:
SashulF [63]3 years ago
7 0

Answer:

0.7233

Step-by-step explanation:

We want to find the area between the z-scores z=-0.95 and z=1.25.

We first find the area to the left of each z-score, and subtract the smaller area from the bigger one.

For the area to the left of z=-0.95, we read -0.9 under 5 from the standard normal distribution table.

This gives P(z<-0.95)=0.1711

Similarly the area to the left of z=1.25 is

P(z<1.25)=0.8944

Now the area between the two z-scores is

P(-0.25<z<1.25)=0.8944-0.1711=0.7233

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