Mathematics, 21.06.2019 20:30 chicalapingpon1938

Janet is rolling a number cube with the numbers one through six she record the numbers after each row if she rolls of keep 48 times how many times should she expect to roll a 4

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Answer from: mkeyes83

10 times bc 1/6= x/60

Answer from: preservations

20 times But if you wanna see how I got it, there you go

Step-by-step explanation:

We are given a cube that has s 6 faces that are numbered from 1 through 6. She expect to roll a number that is greater than 4 . A number greater than 4 of dice = 5 or 6 Probability of getting 5 = Favorable event ={5}=1 Total events ={1,2,3,4,5,6}=6 So probability of getting 5 = Probability of getting 6 = Favorable event ={6}=1 Total events ={1,2,3,4,5,6}=6 So probability of getting 6 = Thus the probability of getting 5 or 6 = = = Since She plans on rolling the number cube 60 times So,she expect to roll a number that is greater than 4= =20 Hence she should expect 20 times to roll a number that is greater than 4

Answer from: lilinicholeb

20 times

Step-by-step explanation:

We are given a cube that has s 6 faces that are numbered from 1 through 6.

She expect to roll a number that is greater than 4 .

A number greater than 4 of dice = 5 or 6

Probability of getting 5 = $\frac{\text{favorable event}}{\text{total events}}$

Favorable event ={5}=1

Total events ={1,2,3,4,5,6}=6

So probability of getting 5 = $\frac{1}{6}$

Probability of getting 6 = $\frac{\text{favorable event}}{\text{total events}}$

Favorable event ={6}=1

Total events ={1,2,3,4,5,6}=6

So probability of getting 6 = $\frac{1}{6}$

Thus the probability of getting 5 or 6 = $\frac{1}{6}+\frac{1}{6}$

= $\frac{2}{6}$

= $\frac{1}{3}$

Since She plans on rolling the number cube 60 times

So,she expect to roll a number that is greater than 4= $60*\frac{1}{3}$

=20

Hence she should expect 20 times to roll a number that is greater than 4

Answer from: khill21208

Greater than 4 means either 5 OR 6, that means the probability of getting 5 or 6 is 2/6 ==>1/3

Theoretically she needs 3 Rolls to get a number greater than 4

Answer from: diamontehunter1632

I believe the answer is about 10

Answer from: gunnatvinson

Is there more to this question because it doesn’t make sense

Answer from: briannagiddens

Number of possible outcome = 6

Number of outcomes greater than 4 = 2
(face with number 5 + face with number 6)

P(greater than 4) = 2/6 = 1/3

If she rolled it 60 times,
P(she will get greater than 4) = 1/3 x 60 = 20

20 times

Answer from: khushailawadip9dkn2

On a standard die the probability would be 2/6

Answer from: naniicapri3

Only 2/6 times would you expect to roll a number greater than 4 at any given roll

Answer from: tonya3498

She should expect to roll a three 10 times

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Janet is rolling a number cube with the numbers one through six she record the numbers after each ro...