Probability Descriptions
I pick a marble from a jar that has pink and green marbles. How could I describe the likelihood of drawing a yellow marble?
Impossible
I roll a six-sided dice. What is the theoretical probability of rolling a number less than 3?
2/6 or 1/3 or 33.3%
I flip a coin 30 times and land on heads 12 times. What is my experimental probability?
12/30 or 2/5 or 40%
20 times
What part of a box plot represents the median?
The line in between the first and third quartiles/the line in the middle of the box
I flip a coin. How could I describe the likelihood of landing on heads?
Equally likely
I pick a marble from a jar that has 3 red, 5 blue, and 2 yellow marbles. What is the theoretical probability of drawing a blue marble?
5/10 or 1/2 or 50%
I roll a dice 40 times and land on a six 11 times. What is the experimental probability of landing on a six?
11/40 or 27.5%
20 times
How do I calculate the range of a box plot or dot plot?
I roll a six-sided dice. How could I describe the likelihood of rolling a number greater than 2?
Likely
I grab a handful of jellybeans that has 4 pink, 5 green, 2 blue, and 5 orange. What is the theoretical probability of NOT picking pink?
12/16 or 3/4 or 75%
A jar of marbles has 4 red, 5 blue, 3 yellow, and 2 green marbles. If I draw a marble from the jar 25 times and get a blue 4 times, what is the experimental probability of getting blue?
4/25 or 16%
I spin a spinner with 8 equal sections labelled 1-8. If I spin the spinner 40 times, how many times can I expect to spin 1 or 2?
10 times
What does "variability" mean? For example, what does it mean when I say class A has more variability than class B?
A wider range/a greater spread
I use a random number generator to pick numbers between 1 and 10. How could I describe the likelihood of landing on a number less than 4?
Unlikely
65%
I roll a 10-sided dice 80 times and get a four on 15% of the rolls. How many times did I get a four?
The letters of the word "probability" are written on cards. If I draw a card and replace it and repeat for 220 trials, how many times can I predict that I will draw the letter "b"?
40 times
How do I find the mean of a dot plot?
Add up all the data points and divide by the amount of data points
I roll a 20-sided dice. Am I more likely to roll a number more than 14 or less than 8?
Less than 8: 7/20
More than 14: 6/20
I roll a 20 sided dice. What is the theoretical probability of getting a number that is a multiple of 4? Give your answer as a percentage.
25%
Amelia flips a coin 50 times and gets a heads 22 times. What is the difference, as a percentage, between the theoretical and experimental probability of getting heads?
Theoretical: 50%
Experimental: 44%
Difference: 6%
I roll a 20-sided dice 300 times. How many times can I expect to roll a multiple of 5?
60 times
What are the five key parts of a box and whisker plot?