Answer: 1 1/3
Step-by-step explanation: Hope this helped!

Given:
population mean, μ =135
population standard deviation, σ = 15
sample size, n = 19
Assume a large population, say > 100,
we can reasonably assume a normal distribution, and a relatively small sample.
The use of the generally simpler formula is justified.
Estimate of sample mean

Estimate of sample standard deviation


to 5 decimal places.
Thus, using the normal probability table,





Therefore
The probability that the mean weight is between 125 and 130 lbs
P(125<X<130)=0.0731166-0.0018308
=
0.0712858
Answer:
0.3 or 3/10
Step-by-step explanation:
100%=1 so 30%=0.3
Answer:
Smallest: XY
Second smallest: YZ
Biggest: XZ
Step-by-step explanation:
First, just observe the triangle,
see which one is the smallest,
if you just look, it would be XY
Next, the second smallest looks like YZ
Lastly, the last side is the largest if you just look at it
Answer:
it is the first one
Step-by-step explanation: