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Statistics and Probability Flashcards | StudBud
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Statistics and Probability
Statistics and Probability
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1
These are random variables obtained by measuring.
Discrete Random Variable
X Variable
Continuous Random Variables
Y Variable
2
A single 6-sided die is rolled. What is the probability of rolling a 2 or a 5?
\frac{2}{3}
\frac{1}{3}
\frac{1}{2}
\frac{1}{6}
3
On a scale of 1 - 10, what is the probability of choosing an even number?
\frac{1}{3}
\frac{1}{5}
\frac{1}{2}
\frac{1}{4}
4
A day of the week is chosen at random. What is the probability of choosing a Monday or Tuesday?
\frac{1}{7}
\frac{2}{14}
\frac{1}{2}
\frac{2}{7}
5
In the word PROBABILITY, what is the chance of choosing the letter 'B'?
0.18
0.19
0.17
0.20
6
A couple has 3 children. What is the probability that they have three girls?
2
4
1
3
7
A single 6-sided die is rolled. What is the probability of rolling a number greater than 3?
0.5
1
3
2
8
John flips a coin 3 times. The probability that the coin will land on tails is _________.
0.5
1
2
3
9
These are random variables obtained by counting.
X Variable
Discrete Random Variable
Y Variable
Continuous Random Variables
10
What is the probability of rolling an even number on a dice?
1
2
1/2
3
