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KIM [24]
3 years ago
9

If 30 fair dice are rolled find the approximate probability that the average number ofo dots is between 2 and 4

Mathematics
1 answer:
Goryan [66]3 years ago
7 0
There is six sides one a die. between 2 and 4 means 2, 3, and 4, which is 3 of the 6 sides. 3/6=1/2=0.5 the probability that the number of dots is between 2 and 4 is therefore 1/2 or 50%. but one thing, it says the average, meaning add up what you got on all 30 rolls and dividing it by 30, and by probability the average number would be between 3 and 4, to be specific it would be 3.5, which is between 2 and 4. with that the probability is basically 100%, but I believe you messed up the question somewhere and meant the probability the number of dots is between 2 and 4, not average.
If its the probability the average number is between 2 and 4 then the answer is theoretically 100%, If you are asking the probability the dice will roll between 2 and 4 (note its not average of 30) then it is 50%.
Hope this helps.
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what is the rate of inflation if a savings account has a nominal interest rate of 3% and a real interest rate of 1%
IgorLugansk [536]

Answer:

the rate of inflation is 2%.

Step-by-step explanation:

given:

Nominal interest rate =3%

Real interest rate=1%

To Find:

Rate of inflation=?

Solution:

Nominal interest rate:

Nominal interest rate refers to the interest rate before taking inflation into account.

Inflation rate:

The inflation rate is the percent increase or decrease in prices during a specified period. It's usually over a month or a year.

Real interest rate:

A real interest rate is an interest rate that has been adjusted to remove the effects of inflation to reflect the real cost of funds to the borrower and the real yield to the lender or to an investor.

Real interest rate ≈ nominal interest rate − inflation rate.

This can be re written as

inflation rate= Real interest rate - nominal interest rate

Substituting the values,

inflation interest = 1+3

inflation interest=4%

i hope this helpsss<3

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if u didnt undersstand make sure to tell me so i can try to say it again

7 0
3 years ago
Two out of every 5 jelly beans in a bag are green. If the bag contains 60 total jelly beans, how many green jelly beans are in t
Kazeer [188]

Answer:

24

Step-by-step explanation:

2/5 = 40%

40% of 60 = 24

6 0
2 years ago
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ULT ma<br> 4. Write an expression, then evaluate.<br> a. 1/4of the sum of 18 and 6
OlgaM077 [116]

Answer: Required expression: \dfrac14\times(18+16)

Result: \dfrac{17}{2}

Step-by-step explanation:

Given phrase:  " \dfrac14\text{ of the sum of } 18\text{ and }6. "

Required expression: \dfrac14\times(18+16)    ['+' used to express sum, 'x' used in place of 'of']

Since 18+16 = 34

Then,

\dfrac14\times(18+16)=\dfrac14\times34  \\\\=\dfrac{1}{2}\times17\ \ \text{[Divide numerator and denominator by 2]}\\\\=\dfrac{17}{2}

Hence,     \dfrac14\times(18+16)=\dfrac{17}{2}.  

8 0
3 years ago
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maks197457 [2]
You just multiple my guy. 2:3 is like 2/3. What is 2/3 of 39
39*2/3 = 26
6 0
2 years ago
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Ludmilka [50]

Answer:

x

Step-by-step explanation:

3x-4

Add 4 to both sides

3x

Divide both sides by 3

x

Hope this helps!

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5 0
3 years ago
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