Probability of independent events: Decimal answers
When a coins flips twice the probability of heads both flips.
what is .25?
(1/2)(1/2)=0.25
Unique arrangements of “book”.
What is 12?
(4!)/(2!)
5 out of 20 students prefer math to any other subject.
what is 5/20?
Probability of rolling 1 on a die.
What is 1/6?
When rolling 2 dice, the probability of both landing on 1.
what is .0278?
(1/6)(1/6)=0.0278
When you roll a die and flip coin, the probability of rolling a 6 and heads.
what is .0833?
(1/6)(1/2)=0.0833
Unique arrangements of “apple”.
What is 60?
(5!)/(2!)
A spinner lands on blue 12 times out of 40 spins.
What is 12/40?
Probability of rolling an even number on a die.
what is 1/2?
15 rainy days out of 50 were recorded.
what is 15/50?
A card is drawn from a standard deck, replaced, and another card is drawn. The probability of both the cards being ace.
What is .0059?
(4/52)(4/52)=0.00592
Unique arrangements of “coffee”.
what is 180?
(6!)/(2!2!)
27 failures out of 90 trials.
What is 27/90?
Probability of rolling a number greater than 4 on a die.
What is 1/3?
The probability of rolling a number on a die that is not a multiple of 3.
What is 2/3?
When you draw a marble from a bag with 5 red marbles and 5 blue marbles, replace it, then drawing again, the probability of both marbles being red.
What is .25?
(5/10)(5/10)=0.25
Unique arrangements of “banana”.
What is 60?
(6!)/(3!)
In a sample of 500 people 125 people chose pink over red.
What is 125/500?
Probability of rolling a multiple of 3 on a die.
What is 1/3?
When a dice is rolled twice, the probability that both rolls are different.
What is 5/6?
When rolling a die and spinning a spinner with 10 equal sections, the probability of rolling an even number and landing on 7.
what is .05?
(3/6)(1/10)=0.05
Unique arrangements of “Mississippi”.
What is 34,650?
(11!)/(4!4!2!)
In a sample of 1,000 people 497 are diagnosed with influenza.
What is 497/1000?
Probability of rolling a number less than or equal to 4.
What is 2/3?
Unique arrangements of “statistics”.
What is 50400?
(10!)/(3!3!2!)