As a mixed number it would be 2 and 1/4
The are 9 pieces of data in the set so we have:
(27+32+14+19+24+26+22+32+29)/9 = 25
25 is the mean of the set of data.
Just explain what differences you found between the two symbols in the picture.




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The scientist can use only the angle x and the distance y to calculate the distance between the Earth and the Sun using the cosine function.
cos x = BC / y
Solving for BC
BC = y cos x
BC is the distance between the Earth and the Sun :D