Semester 1 Review

Probability

100

What is Theoretical Probability?

Theoretical probability is the probability that you can calculate without actually carrying out your experiment. 

200

What is Experimental Probability?

Experimental Probability is the results you receive from carrying out the experiment. 

300

What is the Theoretical Probability of you flipping a coin and it landing on heads? 

1/2 or 50% 

400

What is the probability of you rolling a six-sided dice and getting an 2? 

1/6 of 16.67%

500

What is the probability of you rolling TWO six-sided dice and them adding up to 5? 

2/36 OR 1/18 OR 5.56%

Adding/Subtracting Rationals

100

(-34) + 24

-10

200

(-45) + (-36) 

-81

300

35 - (-45) 

80

400

34.67 + (-25.45) 

9.22

500

-254.6 + 34.8

-219.8

Multiplying/Dividing Rationals

100

-12 * -3

36

200

-45 ÷ 9

-5

300

2.5 * -3

-7.5

400

950 ÷ -5

-190

500

-40.5 * 3.67

-148.635

Fraction Division

100

5/6 ÷ 3/6 

5/3 = 1-2/3

200

12/15 ÷ 3/5 

1-1/3

300

3/4 ÷ 2/3

9/8 = 1-1/8

400

5/8 ÷ 3/5

25/24 or 1-1/24

500

5 ÷ 2/3 

15/2 = 7-1/2

Constant of Proportionality

100

What is the equation we use for Constant of Proportionality?

y = kx

200

What needs to be true about a graph for it to represent a proportional relationship?

The line needs to be straight and start at the origin (0,0).

300

Ms Bang bought 15 cans of Red Bull for $59.85, how much was it for each individual can?

The Red Bulls cost $3.99 each

400

Ms Bang bought 15 cans of Red Bull for $59.85, how much would it cost for 5 cans? 

It would cost $19.95.

500

Ms Bang bought 15 cans of Red Bull for $59.85, how many cans can she get for $39.51?

She can buy 9 cans for $39.51.