Answer:
y=2.5
Step-by-step explanation:
Answer:
a=
1/0
Step-by-step explanation:
To evaluate the given probability we proceed as follows:
The z-score is given by:
z=(x-μ)/σ
where:
μ-mean
σ-standard deviation
from the question:
mean=272, sig=15
but the sample is n=36, thus we shall have:
√σ/n
=15/√36
=2.5
thus the z-score will be as follows:
x=272
z=(272-272)/2.5=0
x=274
z=(274-272)/2.5==0.8
thus
P(272<x<274)
=P(z<0.8)-P(z<0)
=0.7881-0.5
=0.2881
Hence the answer is 0.2881
Answer: spencer left after 14 days
Step-by-step explanation:
Answer:
(-1,2)
Step-by-step explanation:
point form : (-1,2)
Equation form : x = -1, y= 2
