Probability
Calculate the probability of rolling a 1
1/6
Calculate the probability of flipping a tail (coin).
1.3 + 2.4 =
3.7
4.8 - 3.2=
1.6
Change to mixed fraction: 16/3
5*1/3
Rolling an even number is likely. True or false
False it is even chance (50-50)
It is likely for a die to roll a 3. True or false?
False
2.6 + 1.68 =
4.28
9.12 - 8.151 =
0.969
Convert 74.4% to a decimal
0.744
Find the probability of drawing less than 4 (a deck of cards)
9/52
Find the probability of drawing greater than 8 (a deck of cards)
20/52=5/13
2.543 + 7 + 9.1234 =
18.6664
10-1.005 =
8.995
Convert 3/5 to percent.
60%
A experiment is conducted of 50 different animals at zoo, counting which one eats meats and/vegetables. It was found that
10 animals eat both meats and vegetables, 5 animals eat meats but not vegetables, and 30 animals eat vegetables but not meats.
Find the probability of animals which don't eat both meats and vegetables.
5/50=1/10
Find the probability of animals which eat meat and sleep during day.
20 animals eat meats and sleep during day. 5 animals eat meats and sleep at night. 25 animals don't eat meats and sleep during day. 10 animals don't eat meats and sleep at night.
20/60=1/3
Daily rainfalls for four days over Easter were 12.5 mm, 3.25 mm, 0.6 mm and 32.76 mm. What
was the total rainfall over the four-day Easter holiday?
49.11mm
Stuart wants to raise $100 for the Rainbow Club charity. He already has three donations of $30.20, $10.50 and $5.00. How much does Stuart still need to raise?
$54.30
Express as a percentage of the total:
Red tomatoes out of 8 red tomatoes and 10 yellow tomatoes.
8/18 = 44%
Consider number 1 to 30.
What is the probability that a randomly selected number will be odd and prime number?
9/30=3/10
3, 5, 7, 11, 13, 17, 19, 23, 29
Consider number 1 to 100.
What is the probability that a randomly selected number will be even and prime number?
1/100
2 only
Write down three numbers between 1 and 10, each with 2 decimal places, that would add to 11.16.
Example, 3.57+4.15+3.44
If a = 2.8, b = 1.31 and c = 3.928, find:
c - (b+b)
1.308
Of the following, for which subject did Keira obtain the best test result?
English: 17 out of 25
Mathematics: 20 out of 30
Science: 15 out of 20
History: 7 out of 10
EXPLAIN WHY.
English: 68%
Maths:67%
Science: 75%
History: 70%
so Science