Reference no: EM13120909
Probability
1. Last fall, a gardener planted 65 iris bulbs. She found that only 56 of the bulbs bloomed in the spring.
a) Find the empirical probability that an iris bulb of this type will bloom
b) How many of the bulbs should she plant next fall if she would like at least 92 to bloom?
2. The last 40 violent crimes committed in Sconeville were 2 homicides, 25 robberies, and 13 assaults. What is the empirical probability that the next violent crime committed in Sconeville will be a robbery?
3. One card is selected at random from a standard 52-card deck of playing cards. Find the probability that the card selected is not a spade.
4. The odds against WildHorse winning the third race are 11:2. If Molly places a $4 bet on WildHorse to win and WildHorse wins, find Molly's net winnings
A) $5.50 B) $44 C) $16.50 D) $11 E) $22
5. 500 raffle tickets are sold at $2 each. One grand prize of $100 and two consolation prizes of $50 will be awarded. Find Jake's expectation if he purchases one ticket.
A) -$0.40 B) -$1.20 C) -$1.60 D) $7.75 E) $0.80
6. An independent television station airs a movie-of-the-week every Wednesday. Their market research shows that their horror movies are viewed by an average of 2600 people, their comedies are viewed by 4200 people, and their dramas are viewed by 8000 people. The station buys a package of 50 movies, consisting of 5 horror movies, 20 comedies, and 25 dramas. The movies will be shown one per week for 50 weeks. Find the expected number of viewers on a given movie.
A. 5940 B. 5560 C. 4360 D. 6920 D. 5400
7. How many different four-digit numbers can be formed from the digits 0 through 9 if the first digit must be even and cannot be zero?
8. A box of chocolates contains 20 identically shaped chocolates. Five of them are filled with jelly, three are filled with caramel, and twelve are filled with nuts. What is the probability that one chocolate chosen at random is filled with jelly, caramel, or nuts?
9. A couple plans to have exactly three children.
(a) Construct a tree diagram and list the sample space.
(b) Find the probability that the family has at least two girls.
10. (A card is selected from a deck of 52 playing cards. Find the probability of selecting
a) a diamond given the card is black
b) a queen given the card is a picture card.
|
Cross exchange rate of currency
: A currency trader observes that in the spot exchange market, 1 U.S. dollar can be exchanged for 9 Mexican pesos or for 111.23 Japanese yen. What is the cross-exchange rate between the yen and the peso
|
|
How much to invest in the risk-free asset
: You have another $9,000 to invest and want to divide it between an asset with a beta of 1.74 and a risk-free asset. How much should you invest in the risk-free asset?
|
|
Solve equations and inequalities
: How do you know if a value is a solution for an inequality? How is this different from determining if a value is a solution to an equation?
|
|
What will be the amount charged as an expenditure
: A government accounts for a municipal landfill in an enterprise fund. How will it determine how much to charge as an expense (and add to a liability) each year that the landfill is in use? Suppose, instead, that it accounts for the landfill in a g..
|
|
How many different four-digit numbers can be formed
: How many different four-digit numbers can be formed from the digits 0 through 9 if the first digit must be even and cannot be zero?
|
|
Two squares and square of binomial
: Give an example of a single polynomial with degree 3, whose value is 4 when the variable is equal to 1. Give an example of a single polynomial with degree 3, whose value is 29 when the variable is equal to 2.
|
|
Transaction on the books of meredith company
: Prepare separate entries for each transaction on the books of Meredith Company.
|
|
How many terms expect to find between the values
: Its mean is 139 and its standard deviation is 12. Approximately how many terms can you expect to find between the values of 115 and 163?
|