Answer:
a for plato, the answers for the test are as follows:
Select the correct answer.
One of the games in a fundraiser involves rolling a six-sided die. The rule is that a player has to donate six times the value shown on the die. What is the expected value of a donation?
A. $21
B. $27
C. $30
D. $36
A
Type the correct answer in the box. Round your answer to the nearest thousandth.
A traffic light near a museum is green for 30 seconds, yellow for 5 seconds, and red for 15 seconds.
If 8 vehicles approach the signal, the probability that 3 of them are stopped by the red light is ___.
0.254
Select the correct answer.
There is a 20% probability that a person inoculated with a particular vaccine will get the disease anyway. A county health office inoculates 83 people. What is the probability that exactly 10 of them will get the disease at some point in their lives?
A. 0.0202
B. 0.0210
C. 0.0412
D. 0.9587
B. 0.0210
Ten students begin college at the same time. The probability of graduating in four years is 63%. Which expanded expression shows the first and last terms of the expression used to find the probability that at least six will graduate in four years?
A.
B.
C.
D.
A
Type the correct answer in each box. Round your answers to the nearest thousandth.
The probability that Sandra gets a ride to work on any morning is 0.7.
The probability that she gets a ride 3 times in a 5-day work week is
, and the probability that she gets a ride at least 2 times in a 5-day workweek is
.
The probability that she gets a ride 3 times in a 5-day work week is 0.31.
The probability that she gets a ride at least 2 times in a 5-day workweek is 0.97.
i got a 4/5
Step-by-step explanation:
