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kumpel [21]
3 years ago
13

What is the probability that if you picked out a number ball 3 times you would get the number 7 each time

Mathematics
1 answer:
harina [27]3 years ago
6 0

I don’t get it sorry

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Consider the numberless roulette game at a casino. On a spin of the wheel, the ball lands in a space with color red (r), green (
Tatiana [17]

Answer:

a. Probability of Event A = 2.724037476607E−24

b. G19 = 0.123

c. P(Winning) = 0.475

Step-by-step explanation:

Given

Red (r) = 19

Green (g) = 19

Black (b) = 2

Total = 19 + 19 + 2 = 40

a. In 40 spins of the wheel, find the probability of event A = {19 reds, 19 greens, and 2 blacks}.

This is calculated as follows;

Let P(R) = Probability of Red

P(R) = 19/40

Let P(G) = Probability of Green

P(G) = 19/40

Let P(B) = Probability of Black

P(B) = 2/40

Total number of arrangement = 40!/(19!19!2!) = 27,569,305,764,000

Probability of Event A = 27,569,305,764,000 * (19/40)^19 * (19/40)^19 * (2/40)^19

Probability of Event A = 2.724037476607E−24

b. In 40 spins of the wheel, find the probability of the event G19 = {19 greens}.

Let P(G) = Probability of Green

P(G) = 19/40

Let P(Other) = Probability of any colour other than green = (2+19)/40

P(Other) = 21/40

Total = 40C19

G19 = 40C19 * (19/40)^19 * (21/40)^21

G19 = 0.125525075056335

G19 = 0.123 ---- Approximated

c. Given that you randomly choose to bet red and green only, what is the probability p that you bet a winner?

Let P(R) = Probability of Betting Red

P(R) = 19/40

Let P(G) = Probability of Betting Green

P(G) = 19/40

Let P(Winning) = Probability of Winning

P(Winning) = ½ * P(G) + ½ * P(R)

P(Winning) = ½ * 19/40 + ½ * 19/40

P(Winning) = ½(19/40 + 19/40)

P(Winning) = ½(38/40)

P(Winning) = 19/40

P(Winning) = 0.475

7 0
3 years ago
Read 2 more answers
Jake volunteers to help out his younger brother's basketball team in his free time. One of his tasks is to ensure that all the b
lara [203]

Answer:

2141.76 cubic inches

Step-by-step explanation:

Given that it measures 8.8 inches across a properly inflated basketball i.e. the diameter of each basketball is 8.8 inches.

So, the radius of the spherical ball is \frac{8.8}{2} =4.4 inches.

Now, a spherical solid has a volume given by \frac{4}{3} \pi r^{3}.

Hence, volume of air in side each basketball is = \frac{4}{3} \times \frac{22}{7}\times 4.4^{3} = 356.96 cubic inches.

Therefore, the total volume of air inside six balls will be = 6 × 356.96 = 2141.76 cubic inches. (Answer)

4 0
3 years ago
Two BLARBs equal one BLABB. Three BLABBs equal ten BLALBs, and one BLALB equals two BABs. How many BABs equal 6 BLARBs?
puteri [66]
6 barbs =22  as your answer
8 0
3 years ago
If I have 5 classes and they each take 40 minutes how many hours will it take me to do all my classes?
liberstina [14]

Answer:200 minutes or 3 hours and 20 minutes

Step-by-step explanation:

multiple 5 and 40 and you’ll get the answer 200

5 0
2 years ago
Read 2 more answers
Is that better talbottislan
Alenkinab [10]

Answer:

10

Step-by-step explanation:

the most common #is 10

7 0
3 years ago
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