Assume your friend just took an exam made up of 20 true/false questions. Further assume that your friend had no knowledge relevant to the questions, and consequently just guessed the answer to each question What is the probability your friend will pass the exam. Each question has the same weight and 60 or more correct answers results in a passing grade.
a. 0.1316 c. 0.2517
b. 0.1307 d. 0.0580
A football player is practicing making field goals from the 30-yard line. If the probability of his kicking a field goal is 0.75, what is the probability he will kick at least 12 field goals in the next 15 tries? Assume independence between tries.
a. 0.0000 c. 0.4613
b. 0.2252 d. 0.6481
The probability of obtaining a result as extreme or more extreme than 4 heads if 11 coins were tossed and p(H) = 0.35 is _________.
a. 0.6683 c. 0.5490
b. 0.2745 d. 0.7184
What is the probability of obtaining exactly 5 P events if the appropriate term of the binomial expansion to evaluate were 6P5Q1 and P = 0.42?
a. 0.0784 c. 0.4616
b. 0.0455 d. 0.0076
If one of the terms in a binomial expansion were 210P6Q4, what is the value of N?
a. 210 c. 4
b. 6 d. 10
In one flip of 10 unbiased coins, what is the probability of getting a result as extreme or more extreme than 8 heads?
a. 0.0547 c. 0.0020
b. 0.1094 d. 1.0000
In one flip of 10 unbiased coins, what is the probability of getting 8 or more heads?
a. 0.0547 c. 0.0439
b. 0.0016 d. 0.0010
What is the probability of 4 heads turning up out of four tosses of the coin if the probability of any one head is P = 0.40?
a. 0.0625 c. 0.0256
b. 0.1296 d. 0.3456
What is the probability that one can call the flip of a coin correctly at least 6 out of 7 times assuming that the coin is fair?
a. 0.0078
b. 0.0547
c. 0.5000
d. 0.0625
e. 0.1250
If one flips 5 unbiased coins once, what is the probability of getting exactly 3 heads?
a. 0.6000 c. 0.4687
b. 0.3125 d. 0.0312