To answer this problem we have to have a <span>Standard Normal Distribution table because we need to look up z scores. Then we use this equation
</span><span>z = (value - mean)/(standard deviation) = (250-200)/20 = 2.5.
</span><span>
The z score is then 2.5 </span>If so, look up z=2.5 on the left edge then you then determine from the table what the area to the left of that is.
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Here are the conditions:
</span><span>p(z>2.5)=1
p(z<2.5)=.621
1-.621= .379
100-37.9= 62.1</span><span>
Given that, we should go with </span><span>.621%.</span>
Answer:
And we can find this probability with the complement rule and with the normal standard table and we got:
Step-by-step explanation:
Let X the random variable that represent the patient recovery time of a population, and for this case we know the distribution for X is given by:
Where and
We are interested on this probability
And we can solve this problem using the z score formula given by:
And using this formula we got:
And we can find this probability with the complement rule and with the normal standard table and we got:
Answer:
Step-by-step explanation:
Let the coordinate of the points W, V and R are and respectively.
The coordinate of the section point, which divides the line joining the two points and in the ration is
and
.
The given ration is,
.
The exact point can be determined by putting the value of the exact coordinate in the above-obtained formula.
Answer:
Step-by-step explanation:
The given inequality is 3x-2>4 or
We group similar terms to obtain: 3x>4+2 or
Simplify to get:
3x>6 or
x>2 or
This implies that the solution set is all real numbers.
The solution in interval notation is
V(cylinder)= πr²h
d=2r,
d is diameter, r is radius.
When diameter is tripled, a new diameter D=3d,
new radius R=3d/2=(3*2r)/2=3r
R=3r
V(new cylinder)= πR²h = π(3r)²h=9πr²h
V(new cylinder)/V(cylinder)=9πr²h/πr²h=9
Volume new cylinder 9 times more the volume of old cylinder.