Answer:
Pr(X >42) = Pr( Z > -2.344)
= Pr( Z< 2.344) = 0.9905
Step-by-step explanation:
The scenario presented can be modeled by a binomial model;
The probability of success is, p = 0.65
There are n = 80 independent trials
Let X denote the number of drivers that wear a seat belt, then we are to find the probability that X is greater than 42;
Pr(X > 42)
In this case we can use the normal approximation to the binomial model;
mu = n*p = 80(0.65) = 52
sigma^2 = n*p*(1-p) = 18.2
Pr(X >42) = Pr( Z > -2.344)
= Pr( Z< 2.344) = 0.9905
Answer:
- 1 2/6 - 1/6
- 1 3/6
-1 1/2
Step-by-step explanation:
36 + 25 = 61
180 - 61 = 119
119
All triangles angles should add up to 180
Answer:
2+32 (Or x)+16 = 50
Step-by-step explanation:
Check the picture below.
the constant of proportionality, namely the slope, for the original rectangle will just be 4/2 = 2, and for the dilated version shown that he did, it'll be 20/10 = 2.
part B)
we know the slope is 2, or 2/1 so then
