The computed chi-square value is positive because the difference between the observed and expected frequencies is squared.
The formula for chi-square is the sum for all values of (observed - expected)^2 / expected.
Hope this helps!! :)
Answer:
522.5
Step-by-step explanation:
you need to show me the picture, or point out which is the height, which are the bases.
I am supposed 38 is the height
8.5 & 19 are the bases.
the formula for calculating the are of the trapezoid is:
(8.5+19)*38 /2 =522.5
Answer:
pretty sure its A
Step-by-step explanation: