Answer:
The probability that the student will not guess correctly on any one question is 4/5
Step-by-step explanation:
The question posed is an application of the binomial probability distribution.
We have been informed that the test has multiple choice questions with 5 choices for each answer that only one answer is correct for each question.
If the student guesses the answer to each question, then the probability that the student will guess correctly on any one question is 1/5.
Therefore, the probability that the student will not guess correctly on any one question is;
1 - 1/5 = 4/5
Answer: 3/6 + 2/6 = 5/6
Step-by-step explanation: 1/3 is equal to 2/6 then 3/6+ 2/6 equals 5/6
Answer: 6/625 gallons of water wa splashed out of the pool
Step-by-step explanation:
Total number of gallons of water in the pool was 10 1/2. Converting to improper fraction, it becomes
21/2 gallons.
Jake and his friend splashed g gallons of water out of the pool. There are 7 7/8 gallons still left in the pool. Converting 7 7/8 to improper fraction, it becomes
63/8 gallons
This means that
g + 63/8 = 21/2
g = 21/2 - 63/8 = (84 - 63)/8
g = 21/8 = 2.625 gallons
Answer:
1
Step-by-step explanation:
substitute -2 for x
3(-2) + 7
-6 + 7
1
hope it helps :)
mark brainliest!!