Answer:
(1a) 9.54e-07 (1b) 0.9437 (2) 
Step-by-step explanation:
We have n = 10 questions. For each question in the multiple choice exam, we can choose the correct answer with probability p = 0.25 or an incorrect answer with probability q = 0.75 (just by guessing). Besides is reasonable to believe that questions are independent. Let X be the random variable that represents the number of correct answers (just by guessing) observed during the n = 10 questions, so, X have a binomial distribution.
(a) The probability of getting a perfect score just by guessing is
(b) The probability of getting at least one question correct, just by guessing
2. Each RUID is 9-digits long, there are 10 digits, each of the nine positions for a digit of the RUID has 10 posibilities except the 4th and 5th positions which must be both 0. For the multiplication rule there can be 
different RUIDS.
Answer:
93.5
Step-by-step explanation:
trust me im a verified genius
Common difference = 0.75
Next term = -0.75 + 0.75 = 0
Aria's vertical distance from the top of the valley after walking 3 km along the trail is less than 3 km.
Since Here d represents distance along the trail.
And, V(d) represents the vertical distance from the top of the valley (in kilometers) after walking d kilometers along the trail.
If the distance along the trial is 3 km.
That is, d = 3
Then the vertical distance she walked from the top of the valley = V(3)
But According to the question,
V(3) < 3
Her vertical distance from the top of the valley after walking 3 km along the trail is less than 3 km.
Hence, For going 3 km along the trail her vertical distance from the top of the valley is less than 3.
Learn more about Vertical Distance at:
brainly.com/question/4493830
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Answer:
156
Step-by-step explanation:
8-4= 4+9 = 13 x 12= 156
Hope this helped
