130 stats
1
| If subjects are randomly selected, find the probability of the | ||||||||
| following probability statements: | ||||||||
| P(man) = | P(women | republican) = | P(picking a male democrat)= | ||||||
| P(women)= | P(Republican | women) = | P(picking two democrats) = | ||||||
| P(Democrat)= | P(Man | Democrat) = | P(picking two women)= | ||||||
| P(picking a women republican) = |
A survey is made in a neighborhood of 100 voters. 50 are Democrats and 50 are Republicans. Of the Democrats, 30 are women, while 26 of the Republicans are women.
2
Container 1 has 8 items, 3 of which are defective. Container 2 has 6 items, 2 of which are defective. If one item is drawn from each container, what is the probability that only one of the items is defective?
3
A letter is drawn from the alphabet of 26 letters. What is the probability that the letter drawn is a consonant? Do not consider y as a vowel.
4
A family has two children. What is the probability that both are girls, given that at least one is a boy? Make sure you use a text box to explain your answer.
5
| QUANTITY PURCHASED PER PERSON IN ONE MONTH | ||
| # of six packs purchased | # people who purchased this amount | |
| 0 | 7 | |
| 1 | 6 | |
| 2 | 6 | |
| 3 | 12 | |
| 4 | 14 | |
| 5 | 12 | |
| 6 | 10 | |
| 7 | 8 | |
| 8 | 5 | |
| 9 | 5 | |
| 10 | 3 |
1. Create a probability distribution using the data which shows how many cartons of the wine cooler were bought per customer in a month. 2. Calculate the mean and the standard deviation of your probability distribution. 3. Calcualte the probability that exactly 3 six packs will be bought in a month 4. Calcualte the probability that between 4 and 8 six packs will be bought in a month 5. Calcualte the probability that at least 5 six packs will be bought in a month 6. Calcualte the probability that no more than 5 six packs will be bought in a month
6
| A police officer recorded 10 accidents for a given week. | ||||||||
| During the week, he noticed that 3 were fatalities. | ||||||||
| What is the following probabilities | ||||||||
| P ( X = o ) | P( X ≥ 7) | P ( X is more than 4) | ||||||
| P ( X = 3 ) | P ( X ≤ 2) | P ( X is no more than 8) | ||||||
| P( X < 4) | P ( X is at least 5) | |||||||
| P ( X > 5) | P ( X is less than 4) |
Sheet2
| Given the population mean m = 50 with a standard deviation of s = 6. Calculate the following: | ||||||||||
| a. P ( X £ 35 ) | 40 | c. P ( 38 £ X £ 60 ) | ||||||||
| b. P ( X ³ 44 ) | c. P ( X > 60 ) |