WorksheetsIB Basic Probability
Total questions: 10
Worksheet time: 8mins
Which one is the sample space for flipping 3 coins?
{H, T}
{H1, H2, H3, T1, T2, T3}
{HHH, TTT, HTH, THT, TTH, HHT}
{HHH, TTT, HTH, THT, TTH, HHT, HTT, THH}
Roll a die one time. Find P(even number).
1/2
1/3
3/6
2/6
Chelsea surveyed a sample of students in the senior class to determine the distribution of students with a driver’s license.
What is the probability a randomly selected student has no license?
Give your answer as a fraction!
(a)
Use the table which gives the number of passengers from the Titanic who survived or died and their cabin class. What is the probability that the passenger survived and is from 2nd class?
0.1260
0.6203
0.2156
0.0896
The probability of Johnny Snazpants guessing correctly on the IB exam is 34% on each question. If there are 50 questions, how many should he expect to get correct?
(a)
There are 27 marbles in a bag. 7 are red, 3 are green, 10 are blue, and the rest are yellow. If you draw from the bag 100 times and replace the marble each time, how many yellow should you expect to draw?
26
24
74
39
