Answer:
13.5 answer is 13.5 and one cost 4.5
Answer:
1
Step-by-step explanation:
3^3/5-3-(4-2)^2/2
3^3/3-2^2/2
3-2
=1
Answer:
B I think
Step-by-step explanation:
53% of 470 is exactly 249.10000000000002. What ever is closest to that is your answer.
To evaluate the probability that a randomly selected day will be between 28 and 34 minutes we proceed as follows:
P(28<x<34)
First we evaluate the z-score for the above values:
z=(x-σ)/μ
μ=26.7
σ=5.1
when:
x=28
z=(28-26.7)/5.1
z=0.26
P(z<0.26)=0.6026
when x=34
z=(34-26.7)/5.1
z=1.43
P(z<1.43)=0.9236
hence:
P(28<x<34)=0.9236-0.6026=0.321~32.1%
