P(2)= ?
1/13
P(sum of 8)= ?
5/36
The ratio of the length in a drawing (or model) to the length of the real thing
Scale
Miss Murch found the probability of drawing a spade to be 1/5. Did she find the theoretical or experimental probability?
Experimental Probability
The actual size of a tree is 100ft. If the scale is 1in:25ft, what is the scale length of the tree?
P(queen of hearts)= ?
1/52
P(sum of 3)= ?
1/16
All results that could occur from an experiment
Possible Events/outcomes
What is the theoretical probability of landing on green or blue?
1/2
On a map, the scale factor is 1cm:5miles. According to the map, Ms. Annunziata lives about 50cm away from STEM. What is the actual distance from Ms. Annuziata to STEM?
250 miles
P(4 or 7)= ?
2/13
Probability of rolling the same number on both dice?
1/6
What is the formula to calculate Theorethical Probability
Desired Outcome or event divided by all possible outcomes or events;
Desired Event รท Possible Events
What is the experimental probability of landing on green or blue?
3/8
The scale is 0.5in:10 miles. If the scale length is 3.5in, what is the actual length?
35 miles
P(2-4)= ?
3/13
P(sum of 6 or 7)= ?
What we expect to occur in an experiment
Theoretical Probability
What is the theoretical probability of not landing on green?
3/4
What is Mr. Rana's favorite food?
Chicken Wings
P(not an ace)= ?
12/13
P(not a sum of 12)= ?
35/36
What actually occurs in an experiment
Experimental Probability
What is the experimental probability of not landing on green?
17/20
A scale drawing of a rectangle has the dimensions 9cm by 10cm. If 6cm=12 ft, what are the actual dimensions?
18ft x 20ft