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RUDIKE [14]
2 years ago
6

There are three risk classes in a pool of insureds under a whole life insurance policy. 34% of the insureds are in Class D, 28%

of the insureds are in Class E, and the rest are in Class F. A sample of 25 insureds is randomly selected from this pool. Let D, E, and F refer to the number of insureds selected in this sample from their respective groups. Calculate Var(D)/Var(E) - Var(D)/Var(F).
A 0.070.
B. 0.129.
C. 0.16.
D. 0.217.
E. 0.265.
Mathematics
1 answer:
KATRIN_1 [288]2 years ago
8 0
C is the answer hope this helps
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PLEASE HELP!!!!!
leva [86]

Answer:

11.7 units

Step-by-step explanation:

sq root(2--4)^2+(-7-3)^2

sq root(6)^2 + (-10)^2

sq root (36)+(100)

sq root 136

equals 11.66 which rounds up to 11.7

6 0
3 years ago
The graph of the function f(x) = (x − 3)(x + 1) is shown.
AVprozaik [17]

The expression that describes all of the values for which the graph is positive and decreasing is all real values of x where x < -1

<h3>Which describes all of the values for which the graph is positive and decreasing?</h3>

The equation of the function is given as:

f(x) = (x - 3)(x + 1)

When the value of the graph is positive, we have:

f(x) > 0

So, the function becomes

(x - 3)(x + 1) > 0

Split the above inequality

x - 3 > 0 and x + 1 > 0

Solve for x in the inequalities

x > 3 and x > -1

Hence, the expression that describes all of the values for which the graph is positive and decreasing is all real values of x where x < -1

Read more about intervals at:

brainly.com/question/1503051

#SPJ1

3 0
1 year ago
For what value of the variable will the expression 8b-27 <br><br> -11
raketka [301]

Answer: 8b - 38

Step-by-step explanation:

8 0
3 years ago
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Rufina [12.5K]

Answer:

im begging

Step-by-step explanation:

7 0
3 years ago
3t-7=5t, then what does 6t=
BartSMP [9]
Subtract 3t from the equation to get 2t=-7.  Multiply by three to find that 6t=-21.
6 0
3 years ago
Read 2 more answers
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