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Advocard [28]
3 years ago
11

What is the probability of rolling doubles on 2 dice

Mathematics
2 answers:
Simora [160]3 years ago
6 0

Answer:

P = \frac{1}{6}

Step-by-step explanation:

For each die there are S = 6 possible results. Therefore the amount of possible results when throwing 2 dice is:

S = 6 * 6 = 36 possible results.

Now, the possible ways to get a double are 6:

\{(1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6)\}

By definition the probability of an event is:

P = \frac{Number\ of\ favorable\ results}{Number\ of\ possible\ results}

Number of favorable results = 6

Number of possible results = 36

Then:

P = \frac{6}{36}

Simplifying we get: P = \frac{1}{6}

KatRina [158]3 years ago
4 0
2/12 or simplified 6
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Please help me work this out, it's not multiple choice. I'll mark you brainliest.
kipiarov [429]

Answer:

the correct one is c

Step-by-step explanation:

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6 0
3 years ago
n automobile manufacturer claims that its van has a 37.4 miles/gallon (MPG) rating. An independent testing firm has been contrac
JulsSmile [24]

Answer:

Then z(s) is out of the acceptance region, we reject H₀,  doubts of the independent testing firm are valids

Step-by-step explanation:

We will develop a Hypothesis Test ( a 2 tail test since the independent testing firm is interested in finding out  if there is an incorrect MPG rating from the manufacturer

Test Hypothesis :

Null hypothesis                             H₀            μ    =    μ₀

Alternative Hypothesis                Hₐ             μ    ≠    μ₀

Significance Level   α  = 0,05    α/2  =  0,025

z(c) for α/2   from z-table      z(c)  = - 1, 96   and by symmetry  z(c) = 1,96

Calculating  z(s)

z(s) =  ( μ  -  μ₀ ) / σ /√n

z(s) = ( 37,8 - 37,4 ) / 2,3 /√280

z(s) = 0,4 * 16,73 / 2,3

z(s) = 2,90

Comparison between z(c)  and  z(s)

z(s) > z(c)       2,90 > 1,96

Then z(s) is out of the acceptance region, we reject H₀,  doubts of the independent testing firm are valids

8 0
2 years ago
Lilly is a pizza driver. Lilly has to make 4 deliveries.
Veronika [31]

Answer:

23 min 30 sec

Step-by-step explanation:

First, you add 35 + 14 + 18 + 27 which is 94.
Next, you divide 94 by the number of deliveries there were. Which is 4.
94/4 = 23.5.
So your answer would be 23 minutes and 30 seconds.

I Hope This Helped :D

5 0
1 year ago
Read 2 more answers
Edward had 100 newspapers to deliver on his paper route. He had already delivered 25
kati45 [8]

Answer:

50 newspapers

Step-by-step explanation:

100 (total amount of newspapers) - 25 (amount Edward already sold) = 75 (amount of newspapers left)

75 (amount of newspapers left) ÷ 3 (Edward and his 2 friends) = 25 (equal amount each person delivered)

25 (amount Edward already sold) + 25 (amount Edward sold after his friends helped him) = 50 (amount of newspapers Edward sold in total)

4 0
3 years ago
A cylinder has a height of 12 inches and a radius of 1.5 inches. What is its voulme? Round your answer to the nearest tenth. Use
USPshnik [31]

Find the area of the top, which is a circle.

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Area = 3.14 x 1.5^2 = 7.065

Now for the volume multiply the area of the top by the height:

7.065 x 12 = 84.78 cubic inches

Round to the nearest tenth: 84.8 cubic inches

8 0
2 years ago
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