A test has 6 multiple choice questions, each with 4 alternatives. What is the probability of guessing 5 or more questions correc
1 answer:
Answer:
0.0009765625
Step-by-step explanation:
Each multiple choice question has 4 equally likely alternatives.
Hence, probability of guessing the right answer for 1 question is = 0.25
Hence, probability of guessing the wrong answer is = 0.75
The probability of guessing 5 or more questions correctly = probability of guessing 5 questions correctly & 1 question wrong + probability of guessing 6 questions correctly
=
= 0.000732421875 + 0.000244140625
= 0.0009765625
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Answer:
the average of this new list of numbers is 94
Step-by-step explanation:
Hello!
To answer this question we will assign a letter to each number for the first list and the second list of numbers, remembering that the last number of the first list is 80 and the last number of the second list is 96
for the first list
for the new list
To solve this problem consider the following
1.X is the average value of the second list
2. We will assign a Y value to the sum of the numbers a, b, c.
a + b + c = Y to create two new equations
for the first list
solving for Y
Y=(90)(4)-80=280
Y=280=a+b+c
for the second list
the average of this new list of numbers is 94