Answer:
The right answer is:
(a) -10.67
(b) 0.7986
Step-by-step explanation:
(a)
According to the question,
<u>X P(X) X.P(X) X2.P(X)</u>
<u>12130 0.002 24.26 294274</u>
<u>-35 0.998 -34.93 1222.55</u>
Now,
or,
hence,
The mean will be:
(b)
According to the question,
n = 12
p = 0.125
q = 1 - p
= 0.875
Now,
⇒
By substituting the values, we get
⇒
⇒
⇒
⇒
⇒
No it's not proportional. it has to be a straight line through the origin (0,0) to be proportional
Answer:
(x - 7y)/(x + 3y)
Step-by-step explanation:
x² - 5xy - 14y²
x² - 7xy + 2xy - 14y²
x(x - 7y) + 2y(x - 7y)
(x - 7y)(x + 2y)
x² + 5x + 6y²
x² + 3xy + 2xy + 6y²
x(x + 3y) + 2y(x + 3y)
(x + 3y)(x + 2y)
[(x - 7y)(x + 2y)] ÷ [(x + 3y)(x + 2y)]
(x - 7y)/(x + 3y)
Answer:
Step-by-step explanation:
Average = sum total/no. Of input
Average = (1.27 + 1.34 + 1.65 + 1.52 1.30 + 1.34)/6
Average = 8.42/6
Average = 1.403