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IrinaK [193]
3 years ago
12

Four possibilities have probabilities 0.4, 0.2, 0.2 and 0.2 and values $40, $30, $20, and $10 respectively. The expected value i

s: a. ​$22 b. ​$28 c. ​$26 d. ​$24
Mathematics
1 answer:
LiRa [457]3 years ago
3 0

Answer:

b. ​$28

Step-by-step explanation:

We have these following probabilities:

0.4 = 40% probability of $40

0.2 = 20% probability of $30

0.2 = 20% probability of $20

0.2 = 20% probability of $10

The expected value is:

We multiply each value by its probability. So

E = 0.4*40 + 0.2*30 + 0.2*20 + 0.2*10 = 28

So the correct answer is:

b. ​$28

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Which equation represents "the product of a number and 24 is 72"?
maxonik [38]

Answer:

24p = 72

Step-by-step explanation:

The product refers to multiplication.

Let the number be p.

The product of p and 24 is 72.

24 × p = 72

24p = 72

7 0
3 years ago
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The softball team stopped for ice cream after a big game. five 2-scoop cones cost the same as three sundaes. If they bought nine
Savatey [412]
<span>Let the cost of 2-scoop cones be x, and the cost of sundaes be y.
The first statement tells us that 5x = 3y
The second statement tells us that 9x + 6y = 19.95
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From our first equation, y = 5x/3. Substituting this into the second equation:
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3 0
3 years ago
Greatest common divisor of 24 ; 80 and 180 ?
Katarina [22]

Answer:

Step-by-step explanation:

1: GCF (72, 144, 180) = 36

2: GCF of 10 and 13 is 1.

3: GCF of 135, 45, and 25 is 5

4: GCF of 150 and 225 is 75

7 0
2 years ago
FIND THE DISTANCE BETWEEN THE POINTS. ROUND THE ANSWER TO TWO DECIMAL POINTS (3,2) (8,2)
defon

Answer:5

Step-by-step explanation:

If you are looking for the distance then start counting on the first decimal and stop at the second

5 0
2 years ago
"In the 45°-45°-90° triangle above, r = 10. Find the other two lengths.
Basile [38]

We are given a right triangle that has angles of 45°-45°-90°. This would indicate that the triangle is an isosceles type. We can use some trigonemetric functions to solve for the other legs. We do as follows:

 

sin 45 = p / 10

p = 5√2

 

cos 45 = q /10

q = 5√2

 

<span>Hope this answers the question. Have a nice day.</span>

5 0
3 years ago
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