Question

i need Unique answer use your own words , don't copy and paste, and don't use your handwriting please.

i need Unique answer use your own words , don't copy and paste, and don't use your handwriting please.

i need Unique answer use your own words , don't copy and paste, and don't use your handwriting please.

Q: Solve the following questions

1. Find the mean and the Variance of the following sample data:

           

x	Frequency (f)
1	5
2	6
4	9
8	6
12	4

___________________

1. Two dice with six faces are rolled, find the sample space and number of elements in the sample space. Also calculate the probability that the sum of the two faces is equal 6.

_________________

1. Use the Prison and Plea data in following table to calculate part a and b :

	Guilty Plea	Plea of not Guilty
Sentenced to Prison	392	58
Not Sentenced to Prison	564	14

1. If someone from the 1028 subjects is randomly selected, find the probability of selecting someone sentenced to prison.
2. If someone from the 1028 subjects is randomly selected, find the probability of selecting someone sentenced to prison and entered a Guilty Plea.

i need Unique answer use your own words , don't copy and paste, and don't use your handwriting please.

i need Unique answer use your own words , don't copy and paste, and don't use your handwriting please.

Answer 1

Solution:-
1) mean = 4.967

Variance = 13.551

2) sample of two dice = 36

Probability of sum of two two face is equal 6 = 5/36 = 0.1389

3)
a) Probability = 392/1028 = 0.3813

b) Probaility = (450/1028) + (956/1028) - (392/1028) = 0.9863