A group of 6 students was asked, "How many hours did you watch television last week? Here are their responses. 11. 10. 18, 4,8, 11
Find the mean number of hours for these students.
If necessary, round your answer to the nearest tenth.

10.333

Step-by-step explanation:

To find the mean/average find the sum of all values by adding 11,10,18,4,8, and 11

The sum of these numbers is 62

Divide the sum (62) by the amount of values used (6)

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)

shorter then the tree