by BlastRoom
Multiplying probabilities along a sequence, and testing whether two events are independent.
#probability_and_statistics

40 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.

The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
A weather service says a July day has probability 0.30 of a thunderstorm, and days are independent. What is the probability of thunderstorms on three particular days in a row, as a decimal to three places?
At a school bike rack, the probability a space is open when Mia arrives is 0.40 each morning, independently. What is the probability a space is open on two particular mornings, as a decimal to three places?
A bottling line labels each bottle correctly with probability 0.98, independently. What is the probability that three particular bottles are all labeled correctly, as a decimal to three places?
A seed packet says each seed sprouts with probability 0.20, independently. What is the probability that four particular seeds all sprout, as a decimal to three places?
An app records that a user clicks an ad with probability 0.15 each time, independently. What is the probability the user clicks three particular ads in a row, as a decimal to three places?
A basketball player makes a free throw with probability 0.45 on each attempt, independently. Find the probability of making two particular attempts, as a decimal to three places.
On a four-question quiz, each answer is guessed correctly with probability 0.25, independently. What is the probability that all four guesses are correct, as a decimal to three places?
A car-rental customer buys insurance with probability 0.35, independently of other customers. What is the probability that the next two customers both buy insurance, as a decimal to three places?
A clinic appointment has probability 0.10 of being a no-show, independently. What is the probability that three particular appointments are all no-shows, as a decimal to three places?
A tablet passes inspection with probability 0.95, independently of other tablets. What is the probability that two particular tablets both pass, as a decimal to three places?
A baseball player gets a hit with probability 0.32 in each at-bat, independently. What is the probability of hits in three particular at-bats, as a decimal to three places?
A light bulb has probability 0.05 of failing in its first year, independently of other bulbs. What is the probability that two particular bulbs both fail, as a decimal to three places?
A crate holds 12 apples, 5 of them bruised. Two apples are drawn at random without replacement. Find the probability that both apples are bruised, as a fraction in lowest terms.
A bag has 10 marbles, 3 of them blue. Two marbles are chosen without replacement. What is the probability that both chosen marbles are blue, as a fraction in lowest terms?
A small deck has 20 cards, 6 of them red. Three cards are drawn without replacement. Find the probability that all three cards are red, as a fraction in lowest terms.
A bin holds 15 batteries, 4 of them defective. Two batteries are selected without replacement. What is the probability both selected batteries are defective, as a fraction in lowest terms?
A box contains 9 pens, 5 of them black. Two pens are picked without replacement. Find the probability that both pens are black, as a fraction in lowest terms.
A jar contains 14 buttons, 8 of them round. Two buttons are drawn without replacement. What is the probability both drawn buttons are round, as a fraction in lowest terms?
A cooler has 11 drinks, 4 of them lemon. Two drinks are taken without replacement. Find the probability that both drinks are lemon, as a fraction in lowest terms.
A bowl holds 13 raffle tickets, 3 of them winners. Two tickets are drawn without replacement. What is the probability both tickets are winners, as a fraction in lowest terms?
A shelf has 16 books, 7 of them paperbacks. Two books are chosen without replacement. Find the probability both books are paperbacks, as a fraction in lowest terms.
A farm basket has 18 eggs, 5 of them cracked. Three eggs are inspected without replacement. What is the probability all three are cracked, as a fraction in lowest terms?
In a school survey, , , and . What statement correctly applies the product rule for independence?
At a clinic, , , and . What statement correctly applies the product rule for independence?
Factory records give , , and . What independence statement is correct by the product rule?
For an app, , , and . What statement correctly tests independence?
A cafe tracks orders with , , and . What statement correctly applies the product rule?
On a team, , , and . What independence decision follows from the product rule?
Library data show , , and . What statement correctly tests independence?
A farm records , , and . What statement correctly applies the independence rule?
A transit survey has , , and . What product-rule statement is correct?
Warehouse records show , , and . What statement correctly tests independence?
A tutor's roster has 9 students, 4 of them seniors. She calls on two different students at random. What product gives the probability that both called students are seniors?
A bag holds 12 tokens, 5 of them green. Two tokens are chosen without replacement. What product models the probability that both tokens are green?
A playlist has 10 songs, 3 of them jazz. Two different songs are played at random. What product gives the probability that both songs are jazz?
A box contains 15 light bulbs, 4 of them dim. Two bulbs are tested without replacement. What product models the probability that both tested bulbs are dim?
A bowl has 8 slips of paper, 6 with a prize printed on them. Two slips are drawn without replacement. What product gives the probability that both slips have prizes?
A cooler holds 14 drinks, 5 of them orange. Three different drinks are handed out at random. What product models the probability that all three drinks are orange?
A committee has 11 members, 7 of them juniors. A president and then a different secretary are selected at random. What product gives the probability that both leaders are juniors?
A carton has 18 eggs, 4 of them brown. Three eggs are chosen without replacement. What product models the probability that all three eggs are brown?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.

Pick a tile, answer, hit bonuses and steals.
Conditional Probability from Two-Way Tables
40 questions