Question 194853
The last 50 violent crimes committed in Maryville were 9 homicides, 24 robberies, and 17 assaults. What is the empirical probability that the next violent crime committed in Maryville will be an assault? 
Ans: 17/50
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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 red card.
Ans: 26/52 = 1/2
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The odds against Lightning winning the third race are 9:4. If Sally places an $8 bet on Lightning to win and Lightning wins, find Sally’s net winnings 
A) $2.25 B) $36 C) $18.00 D) $9.00 E) $72
Ans: 18
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1000 raffle tickets are sold at $3 each. One grand prize of $100 and two consolation prizes of $75 will be awarded. Find Jake’s expectation if he purchases one ticket. 
A) -$2.75 B) -$3.00 C) $0.24 D) $2.75 E) $3.00
Answered yesterday: -$2.75
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An independent television station airs a movie-of-the-day every Tuesday and Thursday. Their market research shows that their suspense movies are viewed by an average of 3500 people, their comedies are viewed by 4500 people, and their dramas are viewed by 6000 people. The station buys a package of 100 movies, consisting of 15 suspense movies, 40 comedies, and 45 dramas. The movies will be shown two per week for 50 weeks. Find the expected number of viewers on a given movie. 
A. 4667 B. 479 C. 140 D. 5025 D. 1400
Answered yesterday
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How many different three-digit numbers can be formed from the digits 0 through 9 if the first digit must be odd and the last digit must be even? 
Answered yesterday
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A box of chocolates contains 20 identically shaped chocolates. Four of them are filled with jelly, seven are filled with caramel, and nine are filled with nuts. What is the probability that one chocolate chosen at random is filled with caramel or nuts? 
Answered yesterday
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A couple plan to have exactly four children. 
(a) Construct a tree diagram and list the sample space.
(b) Find the probability that the family has at least three boys. 
Ans: 5/16
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A card is selected from a deck of 52 playing cards. Find the probability of selecting 
a) a seven given the card is a not a face card. (An ace is not a face card.)
b) a spade given the card is red.
Answered today
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Cheers,
Stan H.