Question

if a dice is thrown 20 times what is the probability of getting 1 2 3 4 5 6? please answer this fast , spammers will be reported . if you don't know don't answer​

Answer 1

Answer:

hope it helps

Step-by-step explanation:

Clearly, the distribution of the 'number of successes' is a binomial distribution with n=20 and,

p = (Probability of getting a number greater than 4) =

6

2

=

3

1

Therefore, q=1−p=1−

3

1

=

3

2

Now, Mean = np and, Variance = npq

Mean = 20×

3

1

=6.66 and, Variance = 20×

3

1

×

3

2

=4.44

Answer 2

Answer:

Probility of someting = favoirable outcmes/total no. of outcomes.

P(1)= 1/20

=> 1/20

P(2)= 2/10

=> 1/10

P(3)= 3/20

=> 3/20

P(4)=4/20

=>1/5

P(5)=5/20

=>1/4

P(6)=6/20

=>3/10