-7!!
I checked on my calculator, since it’ll be too hard to show the work here with my phone :)
Answer:
Yes we can conclude.
Step-by-step explanation:
The sampling distribution of can be approximated as a Normal Distribution only if:
np and nq are both equal to or greater than 10. i.e.
Both of these conditions must be met in order to approximate the sampling distribution of as Normal Distribution.
From the given data:
n = 50
p = 0.80
q = 1 - p = 1 - 0.80 = 0.20
np = 50(0.80) = 40
nq = 50(0.20) = 10
This means the conditions that np and nq must be equal to or greater than 10 is being satisfied. So, we can conclude that the sampling distribution of pˆ is approximately a normal distribution
Answer: f(-x) = x^4 -3x^2 +x^6
-f(x) = -x^4 +3x^2 - x^6
Step-by-step explanation:
at f(-x), place a negative sign inside the function of x itself:
f(-x)= (-x)^4 -3(-x)^2 +(-x)^6
because the powers are even, they cancel out.
First question answer is B.
Second question answer is D.
3^2 = 9, 7 x 9 =63
**In case you're wondering why 3 square root 7 equals to square root 63.
Hope this helps.
Solve the equation in the picture