Answer:
The probability that you get zero questions correct is 0.4096
The probability that you get one questions correct is 0.4096
The probability that you get three questions correct is 0.0256
Step-by-step explanation:
These probability can be describe with a Binomial Distribution. These distribution can be used when we have n identical and independent situations in which there is a probability p or probability of success and a probability q or probability of fail. Additionally q is equal to 1 - p. The probability of x for a situation in which we can apply binomial distribution is:

Where x is the variable that says the number of success in the n situations
And nCx is calculate as:

From the question we can identify that:
- n is equal to 4 multiple choice question
- p is 1/5 or 0.2, the probability of get one question correct
- q is 4/5 or 0.8, the probability of get one question incorrect
Then the probability of get zero questions correct of 4 questions is:

The probability of get one question correct of 4 questions is:

The probability of get three questions correct of 4 questions is:

False, Complementary angles equal to 180 degrees and Supplementary angles equal to 360 degrees
Answer:
2187
Step-by-step explanation: 27 times 81 equals 2187
Answer:
0.9375
Step-by-step explanation:
Do the long division and you'll find the answer.
<span>The least common multiple would be 280 cards of each.
20 Packs of football, 8 packs of Hockey, and 7 packs of Baseball.</span>