Probability
If every student is present in this Precalculus class, what is the probability of randomly selecting a boy?
1/7 = 0.1429
In a standard deck of cards, what is the probability of choosing a 4 or 7?
2/13 = 0.1538
A random number generator picks two integers 1-10. What is the probability of picking the same number twice?
1/10=0.1
What is the complement of rolling a 2 with a six-sided die?
5/6=0.8333
In the senior class at ACA, what is the probability of choosing a girl in Precalculus or a boy in Calculus?
8/11=0.7273
A computer company has a failure rate in production of 0.3%. Find the probability that 5 computers do not work properly.
0.015
What is the sample space for choosing a student from this Precalculus class?
{Avari, Lexie, Cameron, Hamilton, Kyrie, Marleigh, Susi}
In a standard deck of cards, what is the probability of choosing a heart or a 10?
4/13=0.3077
You choose two cards from a standard card deck without replacing. What is the probability that both cards are diamonds?
1/17=0.0588
A random number generator picks an integer between 1 and 20.
What is the probability of getting a number that is even or less than 9?
7/10=0.7
In a standard deck of cards, what is the probability of choosing a face card or an Ace?
4/13=0.3077
You choose two cards from a standard card deck without replacing. What is the probability that pick two cards of the same number/face?
1/17=0.0588
A random number generator chooses an integer between 1 and 30.
What is the probability of getting a number that is divisible by 3 or divisible by 4?
1/2=0.5
In a standard deck of cards, what is the probability of choosing a non-face card or club?
43/52=0.8270
You choose three cards from a standard deck of cards. What is the probability that all 3 are the same suit?
22/425 or 0.0518