We are given with
x1 = 20 min
s1 = 2 min
x2 = 30 min
s2 = 4 min
p = 0.9
Condition (x > 25)
We need to get the t-value between the two means and comparing it wit the t-value for the time of 25 minutes given that there is a 90% probability that the weather will be good. Simply use the t-test formula and use the t-test table to get the probability.
Answer:
4g-5p i think
Step-by-step explanation:
7g-3g=4g
4p-9p=-5p
X^2-10x-24=0
(x+2)(x-12)=0
x=-2 or x=12
Answer:
C
Step-by-step explanation:
Answer is C, only need to move it up and to the right through translation.