Binomial Probabilities Answers

A kicker for a football team makes field goals 85% of the time when kicking from the 20-yard line. Assume that field-goal attempts can be considered random events. Using the table, what is the probability that the placekicker will make at least 4 of his next 5 attempts from the 20-yard line?

A shipping company claims that 90% of its packages are delivered on time. Jenny noticed that out of the last 10 packages shipped, 2 were late. What is the probability that 2 out of 10 randomly selected shipments would be late?

Claire flips a coin 6 times. What is the probability that the coin will show tails 3 times?

A placekicker for a football team makes field goals 85% of the time when kicking from the 20-yard line. Assuming that field goal attempts can be considered random events, what is the probability that the placekicker will make 4 of his next 5 attempts from the 20-yard line?

At a manufacturing plant, it is known that 8% of the computer chips produced are defective. A random sample of 20 chips is taken. What is the probability that 3 of those chips are defective?

The probability that a mature hen will lay an egg on a given day is 0.80. Hannah has 6 hens. Using the table, what is the probability that at least 2 of the hens will lay eggs on a given day?

A quarterback’s pass-completion percentage is 70%. Eight of his passes are randomly selected. What is the probability that 6 of them were successful passes?

A basketball player makes 85% of her foul shots. If 10 of her foul shots are randomly selected, what is the probability that 8 of them are successful shots?

A statistics teacher decides to give his students a 5-question multiple-choice quiz with 4 possible answers for each question. If a student decides to randomly guess on each question, what is the probability the student will get 2 questions correct?

A bottled water company runs a promotion in which 1 out of every 5 bottles has the word "Winner” printed under the cap. Winners receive a free bottle of water. A store owner notices that in the last 8 bottles of water purchased, 3 have been winners. What is the probability of getting 3 "Winner” caps on 8 bottles of water?