Binomial Probability

A tennis player makes a successful first serve 48% of the time. If she serves 8 times in a game, what is the probability that she gets exactly 3 first serves in?

• 0.2355

• 0.2006

• 0.4078

• 0.1275

A tennis player makes a successful first serve 48% of the time. If she serves 8 times in a game, what is the probability that she gets at most 3 first serves in?

• 0.2355

• 0.2006

• 0.4078

• 0.1275

A tennis player makes a successful first serve 48% of the time. If she serves 8 times in a game, what is the probability that she gets at least 5 first serves in?

• 0.3205

• 0.6795

• 0.4078

• 0.2006

A tennis player makes a successful first serve 48% of the time. If she serves 8 times in a game, what is the probability that she gets at least 1 first serve in?

• 0.3205

• 0.9605

• 0.0395

• 0.9947

A multiple choice test has 9 questions, each with 5 answer choices. If a student guesses on every question, what is the probability that she gets exactly 4 answers correct?

• 0.0661

• 0.0165

• 0.9804

• 0.0196

A multiple choice test has 9 questions, each with 5 answer choices. If a student guesses on every question, what is the probability that she gets all of the answers correct?

• 0.000000512

• 0.00000461

• 0.1342

• 0.0064

A multiple choice test has 9 questions, each with 5 answer choices. If a student guesses on every question, what is the probability that she gets at least 7 answers correct?

• 0.00031

• 0.9997

• 0.0.0028

• 0.000019

The probability of a student passing the driver's test on the first attempt is 0.61. If 11 random students are selected, what is the probability that at most 6 of them passed on the first attempt?

• 0.4397

• 0.5603

• 0.2148

• 0.7852

The probability of a student passing the driver's test on the first attempt is 0.61. If 11 random students are selected, what is the probability that at exactly 8 of them passed on the first attempt?

• 0.1876

• 0.8124

• 0.8672

• 0.1328

The probability of a student passing the driver's test on the first attempt is 0.61. If 11 random students are selected, what is the probability that either 5 or 6 of them passed on the first attempt?

• 0.1328

• 0.2148

• 0.3521

• 0.4397