In a multiple-choice test, there are three possible answers to each question. There are 10 questions in the exam. One point is given for the correct answer but nothing is deducted for the wrong answer. To pass the exam you must get at least 5 points. Sigmundur is very bad at the study material and therefore decides what the correct answer is in each question. What are the chances that Sigmundur will pass the exam? 1. about 2%. 2. about 7%. 3. about 14%. 4. about 21%.

Q: if a test is weighted at 25% and I make a 55 on the test with my current grade being a 82, would is…

A:

Q: The histogram shows how many nights George had the given number of hours of sleep in April. How many…

A: We want to tell you which one is the correct choice.

Q: Because of practical considerations you ultimately decide to survey 100 people and find that 75 of…

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Q: Match these values of r with the accompanying scatterplots: - 1, -0.994, -0.423, 1, and 0.772. W…

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Q: Which do you choose? Get $900 for sure OR 90% chance to get $1,000

A:

Q: The students in Emilio's grade voted to select a guest speaker. 35 students voted for a famous…

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Q: The percentage of women who get MS is 0.59%. What percentage of men get MS? Round to the hundreth…

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Q: Please solve this: You are to play a game of chess against a random opponent on the web. You say to…

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Q: You have torn a tendon and is facing surgery to repair it. The surgeon explains the risks to you:…

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Q: All freshmen at Roseville High School are required to play exactly one sport. The table below shows…

A: Solution

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Q: While at the local ice skating rink, Cora went around the rink 27 times total. She slipped and fell…

A: We can find the answer as below.

Q: 23% of the class was unhappy.  19 students were unhappy. How many students were in the class? Round…

A: To find the total students in the class .

Q: Jay got 16 out of 40 questions correct on the test. How many more questions would he have to get…

A: Jay got 16 out of 40 questions correct on the test. To find how many more questions would he have to…

Q: 2. Find the values of x and y 63 56 y%=. 51= +12y + 3 63

A: Use the triangle property that sum of angles is 180°

Q: Actually use drugs 11 Do not use drugs Total Test "positive" Test "negative" 2 13 4 370 374 Total 15…

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Q: Alyssa took a math test with 30 questions and she answered 25 questions correctly. In order to get…

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Q: You take a test with 32 questions on it. You answer 24 questions correctly. What percent of the…

A: Given total questions were 32.Given 24 questions answer correctly.

Q: Lebron James predicted he would have won 7 championships by his retirement. It is 2024 and he has…

A: Percent error is given by

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Q: After three tests, a student has a test mean of 78%. What does the student need on the fourth test…

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Q: The chances of winning an election for party "V" is 83%.On an average how many times did party "V"…

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Q: Maria is playing Potty Toss at the local fair. She gets a total of 4 shots and can win the following…

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A: To evaluate:- 20% of 19

Q: In Music, Linda scored 70%, and her score was at the 85th percentile.  In Art, Linda scored 95%,…

A: It is given that the stated person's scores (in percentage) in Music and Art are 70% and 95%…

Permutations and Combinations

If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba, cb and ca. It is in a particular order. So, this can be called the permutation of a, b, and c. But if the order does not matter then ab is the same as ba. Similarly, bc is the same as cb and ac is the same as ca. Here the list has ab, bc, and ac alone. This can be called the combination of a, b, and c.

Counting Theory

The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.