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kow [346]
3 years ago
7

Paige rolls a number cube sixty-four times. The number 4 comes up fourteen times. The number 3 comes up six times. Rounded to th

e nearest whole percent, what is the experimental probability of rolling a 3 or 4? %
Mathematics
1 answer:
3241004551 [841]3 years ago
6 0

Answer:

31%

Step-by-step explanation:

To determine the probability of obtaining 3 or any number in a roll, we divide the number of outcomes with the sample space.

           probability of 3 :    n = 6/64 = 3/32 = 0.09375

           probability of 4 :    n = 14/64 = 7/32 = 0.21875

Since, we use the conjuction "or", we therefore add up these probabilities. 

                     n = 5/16 or 0.3125

Hope this Helps

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3 years ago
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You are attempting to estimate the number of protester marching through the city
Alenkinab [10]

9514 1404 393

Answer:

  1000

Step-by-step explanation:

If the number of protesters per minute remains a constant, then you could write the proportion ...

  p/12 = 177/2.1

Multiplying by 12 gives ...

  p = 12(177/2.1) ≈ 1011.4

Here, minutes are given to 2 significant figures, and the initial count is given to 3 significant figures. The best you can hope for is that your estimate is good to 3 significant figures:

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It is probably sufficient to report the number to 2 significant figures*:

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* Unfortunately, with a number like 1000, the only way you can tell it has 2 significant figures is to report it as 1.0×10³ or 10. hundreds. The trailing zeros are usually not considered significant.

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3 years ago
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Question number 1: 5/8 (16b+24) -1/2b<br><br> Question number 2: 3/4 (16/64 + 12a) -9a
Sophie [7]

Answer:

Problem 1. <em>(19/2)b + 15</em>

Problem 2. <em>3/16</em>

Step-by-step explanation:

Question number 1

5/8 (16b+24) -1/2b  =

= (5/8) * (16/1) * b + (5/8) * 24 - (1/2)b

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= (20/2)b - (1/2)b + 15

= (19/2)b + 15

Question number 2

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= (3 * 1)(4 * 4) + (3 * 12)/(4 * 1) * a - 9a

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3 years ago
How do you simplify this
katen-ka-za [31]
It's 2/5 in decimal form it is 0.4.
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