Probability (AND)
To find the probability of one event AND another, you have to _____ the probabilities of both events.
To find the probability of one event OR another, you have to _____ the probabilities of both events.
add
7-10
-3
Mr. B's car gets terrible gas mileage. Look at the following table and compute the missing value.
Gallons Miles
2 32
4 ?
6 96
10 320
64 miles
Write 5/8 as a decimal.
0.625
What is the probability of rolling a 2 and a 1 on a six sided dice?
1/36
What is the probability of rolling a 5 or higher on a six sided dice?
2/6 or 1/3
-12+7-2
-7
Which of the following stores has the best price?
a) Store A sells 3 pounds of potatoes for $4
b) Store B sells 5 pounds of potatoes for $7.50
c) Store C sells 10 pounds of potatoes for $10
Store C has the best price
2/5 + 1/3
11/15
What is the probability of flipping a heads and then a tails on a coin?
1/4
A spinner has 5 colors: red, green, blue, orange, and yellow. If you land on red or green you win. What is the probability of winning?
2/5
3(1-2)-7
-10
A faucet leaks 2 gallons of water every hour. How many gallons will it have leaked after 3 hours?
6 gallons of water
2/7 x 1/6
2/42 or 1/21
A box of chocolates contains 3 milk chocolate, 2 dark chocolate, 2 caramel, and 2 white chocolate. Find the probability of picking a caramel and dark chocolate bar.
4/81
Josh flips a coin 50 times. Theoretically, how many times will the coin land on heads?
2+2(3-6)-(-4)
0
Your new job pays you $13 dollars per hour. How much will you have made after 20 hours?
$2600
3/2 divided by 1/4
6
A bag of marbles contains 3 red marbles, 4 blue, 2 yellow, and 2 black. Calculate the probability of picking a blue marble, NOT putting it back, and picking a black marble.
8/110 or 4/55
Lee has a bag that contains 40 coins. If the probability of selecting a gold coin is 20%, how many gold coins are in the bag?
8 gold coins
Which of the following has the same result as -8-12
Select TWO
a)-8+(-12)
b)-8+12
c)8-12
d)-(8+12)
A and D
Christian rode his bike 3 1/4 miles in 2/3 of an hour. What was his average speed in miles per hour?
4 2/3 miles per hour
Evaluate 1.25 divided by 2/5.
3 1/8 or 3.125