Answer:
E(X) = 17.4
Step-by-step explanation:
We can calculate the expected value of a random X variable that is discrete (X takes specific values ) as:
E(X) = ∑xp(x) where x are the specific values of x and p(x) the probability associated with this x value.
In this way the expexted value is
E(X) = ∑xp(x) =(16*0.6)+(18*0.3)+(20*0.2) = 8+5.4+4 = 17.4
1275 divided by 588= 2.168367346938776
1dp=2.2
2dp=2.7
3dp=2.8
Answer:
<u>Percent air is calculated as:</u>
- Percent air = Current amount/Total amount *100
<u>Solve for total amount of air:</u>
- Total amount = Current amount / Percent air * 100
Substitute the values in hand to get the answer
Answer:
what is the question?
Step-by-step explanation:
A^2 = 4.0^2 + 3.7^3 - 2*4*3.7 cos 334
= 4.865
a = 2.2 to nearest tenth.
