LegitBEAUTY

From : Deep History : The Architecture of Past and Present

Food Chapter

if a particular result is statistically significant at the 0.10 level, must it also be statistically significant at the 0.20 level? Why or why not?

When you give $5 for a bet in a casino game, there is 260/495 probability that you will lose $5 and there is a 235/495 probability that you will make a net gain of $5. (If you win, the casino gives you $5 and you get to keep your $5 bet, so the net gain is $5). What is your expected value? (Round to nearest hundredth) In the long run, how much do you lose for each dollar bet?

In the game of roulette a player gives the casino $7 for a bet on the number 5, the player has a 37/38 probability of losing $7 and a 1/38 probability of making a net gain of $245. (The prize is $252 but the players $7 bet is not returned so the net gain is $245.) If a player bets $7 that the outcome is an odd number, the probability of losing $7 is 20/38 and the probability of making a net gain is of $7 is 18/38. (If a player bets $7 on an odd number and wins, the player is given $14 that includes the bet, so the net gain is $7.

a. If a player bets $7 that the outcome is an odd number, what is the players expected value? (Round to the nearest cent)

The player is set on random play, so selections are played randomly and can be repeated . Determine the probability of each of the following outcomes.

(a) The first four selections are all jazz

(b) The first selection is a blues tune and the second is a rock tune.

(c) None of the first four selections is a rock tune.

(d) The first selection is rock, the second selection is jazz and the third selection is NOT blues.

(e) A selection is either a jazz tune or a blues tune.

The player is set on random play, so selections are played randomly and can be repeated . Determine the probability of each of the following outcomes.

(a) The first four selections are all jazz

(b) The first selection is a blues tune and the second is a rock tune.

(c) None of the first four selections is a rock tune.

(d) The first selection is rock, the second selection is jazz and the third selection is NOT blues.

(e) A selection is either a jazz tune or a blues tune.

IQ scores are normally distributed with a mean of 105 & a standard deviation of 15. Assume that many samples of size "n" are taken from a large population of people and the mean IQ score is computed for each sample.

If the sample size n = 49 , find the mean and standard deviation of the distribution of sample means

Assume that many sample of size "n" are taken from a large population of people & the mean IQ score is computed for each sample. The sample size = 49, find the mean & standard deviation of the distribution of sample means

A discourse community is described by John Swales as “groups that have goals or purposes and use communication to achieve these goals.”

At a movie theater, child admission is $6.30 and adult admission is $9.50. On Wednesday, 168 tickets were sold for a total sales of $1311.20. How many child tickets were sold that day?