mathematics

# A set of average city temperatures in October are normally distributed with a mean of 20. 6 ∘ C 20.6 ∘ C20, point, 6, degrees, start

A set of average city temperatures in October are normally distributed with a mean of

20.

6

∘

C

20.6

∘

C20, point, 6, degrees, start text, C, end text and a standard deviation of

2

∘

C

2

∘

C2, degrees, start text, C, end text.

What proportion of temperatures are between

1

8

∘

C

18

∘

C18, degrees, start text, C, end text and

20.

6

∘

C

20.6

∘

C20, point, 6, degrees, start text, C, end text?