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24a) On a T-curve with 19 degrees of freedom, find the area to the right of...

24a) On a T-curve with 19 degrees of freedom, find the area to the right of 2.093. Draw a picture.

24b) On a T-curve with 8 degrees of freedom, find the area between –1.397 and 1.397. Draw a picture.

24c) Draw a picture of a T-curve with an area of 0.995 to the left of 2.763. How many degrees of freedom does this T-curve have?

24d) Draw a picture of a T-curve with an area of 0.95 between –2.160 and 2.160. How many degrees of freedom does this T-curve have?

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