Answer:

Step-by-step explanation:
hello,
let's note x this number we can write

hope this helps
Answer:
50
Step-by-step explanation:
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Answer: they are not the same, the difference is 28
Step-by-step explanation:
Answer:

Step-by-step explanation:


Lets keep the variable terms in L.H.S. and the constant terms in R.H.S.


Lets divide 43 on both the sides.


Answer:
99% Confidence interval: (1196,1973)
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 20
Mean, μ = 1584
Standard Deviation, σ = 607
99% Confidence interval:
Putting the values, we get,

Thus, there is a 99% chance that it will break in approximately 1196 to 1972