answer
.618 18 repeats
Step-by-step explanation:
STEP 1
Mean =

STEP 2
Subtract the mean from each data value then square the answer

⇒


⇒


⇒


⇒


⇒


⇒

STEP 3
Add the squared answers in STEP 2 then find the mean

STEP 4
Square root the answer in STEP 3

Standard deviation is 236.5
You have to use the formula to find the area of the triangle Remember,the area equation is b times h to the b divided by 2.Doing this will get you 600 m.