Visitors to a popular Internet site rated the newest gaming console on a scale of 1 to 5 stars The following probability distribution is proposed based on over 1400 individual ratings f(x) 1 02 2 02 3 04 4 12 5 80 (a) For a future random sample of 40 ratings, what are the mean and standard deviatio...

a b c We need to first compute u and o o066440815 X 1 2 3 4 5 Total ...

Visitors to a popular Internet site rated the newest gaming console on a scale of 1 to

Question:

Visitors to a popular Internet site rated the newest gaming console on a scale of 1 to 5 stars. The following probability is proposed based on over 1400 individual ratings.
f(x)
1........................02
2....................... .02
3....................... .04
4........................12
5....................... .80
(a) For a future random sample of 40 ratings, what are the mean and standard deviation of ?
(b) What is the of ? Is this exact or approximate?(c) Find the probability that lies between 4.6 and 4.8 stars. Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...