IV Maht
In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?
1 /3
How many ways can a group of three students be selected from a class of 21 students?
1,330
A company makes electronic gadgets. One out of every 50 gadgets is faulty, but the company doesn't know which ones are faulty until a buyer complains. Suppose the company makes a $3 profit on the sale of any working gadget, but suffers a loss of $80 for every faulty gadget because they have to repair the unit. Check whether the company can expect a profit in the long term.
1.34
What is your chance of winnning the big prize? •there is a 1/5 chance of going to the winners circle •and a 1/2 chance of winning the big prize
1/10
You decide you're only going to buy a lottery ticket if your expected winnings are larger than the ticket price. Tickets cost $3 , and you get $1400 if you win. The odds of winning are 1 in 500, meaning that you
1/500
If the letters in the word TRIANGLE are rearranged at random, find the probability that the first letter is an A.
1/8
What is the probability of getting a sum 9 from two throws of a dice?
1/9
Let's say that you want to flip a coin and roll a die. There are 2 ways that you can flip a coin and 6 ways that you can roll a die
12
If a three digit number is formed from the digits 1,2,3,4,5,6, and 7, with no repetitions, tell how many of these three digit numbers will have a number value between 100 and 500.
120
On an English exam, students are required to answer four essay questions from a list of nine questions. How many possible combinations of four questions will there be?
126
A local club plans to invest $10000 to host a baseball game. They expect to sell tickets worth $15000. But if it rains on the day of game, they won't sell any tickets and the club will lose all the money invested. If the weather forecast for the day of game is 20% possibility of rain, is this a good investment?
1600
In how many ways can a group of five players on the varsity boys basketball team be chosen from a team of 14 players?
2,002
List all permutations of the letters ABCD There are 4 objects and you're taking 4 at a time
24/1
If you want to draw 2 cards from a standard deck of 52 cards without replacing them, then there are 52 ways to draw the first and 51 ways to draw the second
2652 ways to draw the two cards.
In how many ways can the BHS track coach select four team members to run the 4x4 relay if there are seven available runners?
35
If you want to hit one note on a piano and play one string on a banjo .
440 ways to do both
How many different 5-letter arrangements are there of the letters in the word digit ?
60
you are pocking out an outfit to wear. you are choosing between 3 shirt, 4 pants, and 5 pairs of shoes. how many possible outfit do you have to choose from?
60
five hundred raffle ticked are sold for $2 each. one price of $400 is to be warded . Maria purchases one ticked. determine her expected value ? determine the fair price of a ticked ?
E : -1.20 F: .80
Roger is in a gambling casino that changes $4 per chance to roll an honest die. he will be paid, in dollars, the number of dots on the face of the die, find the expectation?
E: _.5 F: 3.5
When a coin is tossed, there are two possible outcomes: •heads (H) or •tails (T)
H is ½. T is ½.
between 4 and 12 is 8 hours, but you want between 10 and 12 which is only 2 hours:
P(Your Time) = 2/8
A carnival game consistsof tossing a dart, which ands at a random spot within the square target to he right. The red circle wins $5, the blue circle wins $7 and either black triangle wins $10. If it costs $5 to play this game, do you expect to make money or lose money?
You expect to lose about 15 cents on each play.
Why is it unlikely to get, say, 7 heads in a row, when each toss of a coin has a ½ chance of being Heads?
½×½×½×½×½×½×½ = 0.0078125 (less than 1%).
