Independent events
I have a stack of cards.
10 red, 40 green, 10 blue and 20 black.
What is the probability that I pick a red card first, replace it, and then I pick a black card?
Just write the percent.
3.125%
I have a stack of cards.
30 red, 25 green, 15 blue and 10 black.
What is the probability that I pick either a black or red card?
Just write the percent
50%
There is a spinner with 6 choices: 1,2,5,1,5,7.
There is a second spinner with 5 choices:1,2,3,2,6.
What is the chance that I spin a 2 on the first spinner, and then a 6 on the second one.
If it's repeating, put r after it: example: 33.3%r
3.3%r
Out of 20 ballons,
6 are blue
7 are pink
4 are yellow
3 are white
What percent of the population are white balloons?
15%
I have one bag with 6 different numbers: 1,2,3,4,5,6
I have another bag with 4 different numbers: 1,2,3,4.
What is the chance I will pick the combination 3:3?
4.16%r
(Independent Events)
I have a stack of cards.
10 red, 40 green, 10 blue and 20 black.
What is the probability that I pick a red card first, and then a green card?
Just write the percent
6.25%
I have a stack of cards.
30 red, 25 green, 15 blue and 10 black.
What is the probability that I don't pick a blue or red card?
Just write the percent
43.75%
There is a spinner with 6 choices: 1,2,5,1,5,7.
There is a second spinner with 5 choices:1,2,3,2,6.
What is the chance that I spin a 2 on the first spinner, and then a even number on the second one.
If it's repeating, put r after it: example: 33.3%r
10%
What is the chance of me picking a mechanical or a color pencil?
Just write the percent
50%
I have one bag with 5 different numbers: 1,2,4,5,6
I have another bag with 3 different numbers: 1,2,4.
What is the chance I will pick the combination 2:4?
6.6%r
(Independent Events)
I have a stack of cards.
10 red, 40 green, 10 blue and 20 black.
What is the probability that I pick a black card first, and then a green card?
Just write the percent
12.5%
Indepent event
I have a stack of cards.
30 red, 25 green, 15 blue and 10 black.
What is the probability that I don't pick either a black or green card?
Just write the percent
56.25%
There is a spinner with 6 choices: 1,2,5,1,5,7.
There is a second spinner with 5 choices:1,2,3,2,6.
What is the chance that I spin a odd number on the first spinner, and then a 2 on the second one.
If it's repeating, put r after it: example: 33.3%r
33.3%r
I have one bag with 6 different numbers: 1,2,3,4,5,6
I have another bag with 12 different numbers: 1,2,3,4,5,6,7,8,9,10,11,12.
What is the chance I will pick a combination less than 20?
100%
I have one bag with 4 different numbers: 1,4,5,6
I have another bag with 2 different numbers: 1,2.
What is the chance I will pick the combination 6:2?
12.5%
(Independent Events)
I have a stack of cards.
19 red, 26 green, 13 blue and 22 black.
What is the probability that I pick a black card and a green card ?
Just write the percent
8.9375%
Indepent event
I have a stack of cards.
30 red, 25 green, 15 blue and 10 black.
What is the probability that I pick a white card and a 7 spades?
Just write the percent
0%
There is a spinner with 6 choices: 1,2,5,1,5,7.
There is a second spinner with 5 choices:1,2,3,2,6.
Using an area model, How many times does the combination 5:2 appear.
? times
4 times
I have one bag with 6 different numbers: 1,2,3,4,5,6
I have a second bag with 6 different numbers: 1,2,3,4,5,6.
What is the chance I will pick a combination with two even numbers?
25%
I have one bag with 8 different numbers: 1,2,3,4,5,6,7,8.
I have another bag with 5 number: 1,2,3,4,5.
What is the chance I will recieve the combination 7 and an odd number?
7.5%
(Independent Events)
I have a stack of cards.
19 red, 26 green, 13 blue and 22 black.
What is the probability that I pick a pink card and yellow card?
Just write the percent
0%
Indepent event
I have a stack of cards.
30 red, 25 green, 15 blue and 10 black.
What is the probability that I pick either a black or red card, twice?
Just write the percent
25%
There is a spinner with 6 choices: 1,2,5,1,5,7.
There is a second spinner with 5 choices:1,2,3,2,6.
Using an area model,
How many times does a combination, when added, will equal a number greater than or equal to 8 appear.
? times
10 times
I have one bag with 6 different numbers: 1,2,3,4,5,6
I have another bag with 12 different numbers: 1,2,3,4,5,6,7,8,9,10,11,12.
What is the chance I will get a combination with the same numbers?
16.6%r
I have one bag with 7 different numbers: 1,2,3,4,5,6,8.
I have another bag with 4 number: 1,2,3,4.
How many times will I get a combination whose sum is greater than or equal to 6?
60.714285%r