Question

Mr. Gupta gave his students a quiz with three questions on it. Let XXX represent the number of questions that a randomly chosen student answered correctly. Here is the probability distribution of XXX along with summary statistics:
The following is a chart but i cant make it look like one:

X=# correctX 0 1 2 3
P(X) .05 .20 0.50 .25
Mean:μx =1.95
Standard Deviation σX≈0.8

What are the mean and standard deviation of Y?

I NEED HELP PLEASE ASAP

Answer 1

Answer:

The mean 24.5 and SD 8

Step-by-step explanation:

Khan told me