2 years ago

Find the expected value of the random variable with the given probability distribution

Mathematics

1 answer:

Nataly_w [17]2 years ago

8 0

Answer:

36.99

Step-by-step explanation:

Expected value is the sum of each outcome multiplied by its probability.

X = 25(0.05) + 27(0.06) + 70(0.27) + 52(0.25) + 6(0.37)

X = 36.99

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Mama L [17]

Explanation:

Draw a dot 2 units above each dot shown on the graph. Connect the dots in the same way they are connected here.

f(x)+2 simply translates the curve up 2 units.

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3 years ago

What is the area of a circle with a diameter of 26 inches

vampirchik [111]

Answer:

530

Step-by-step explanation:

Area of a circle: $\pi r^{2}$

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3 years ago

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pishuonlain [190]

Answer:

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2 years ago

Read 2 more answers

The sum of a number and 24 times its reciprocal is 11. Find the numbers

Darina [25.2K]

X+24*(1/x)=11
x+24/x=11
x²+24=11x
x²-11x+24=0
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x=-3, x=8
checking : 8+24*(1/8)=11, 8+3=11 correct
-3+24*(1/-3)=-3-8=-11 incorrect
number is 8, reciprocal is 1/8

4 0

2 years ago

Evaluate. write in simplest form. 6-b/3a for a = 10, b = 9

ruslelena [56]

6 - b/3a a = 10, b = 9

6 - 9/(3*10)

6 - 9/30

6 - 3/10

6 - 0.3

<span>= 5.7 or 57/10</span>

6 0

2 years ago