Answers must be in 4 decimals In how many different ways can a true-false test consisting of 10 questions be answere

Q: How many false positives were there among these 189 people? Explain the meaning of a false positive…

A: Introduction - Reasons for false positives :- Non-specific results cross-reactions problems in…

Q: The local​ seven-digit telephone numbers in city A have 480 as the first three digits. How many…

A: Given, the local seven-digit telephone numbers in city A have 480 as the first three digits. There…

Q: How many three numbers with no repeated digits, can be formed by the use of the digits 0, 2, 3, 4,…

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Q: How many 6-character license plates are possible if the first character must be a letter that is not…

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Q: How many 5 digit even numbers are there, a. Given that the first digit cannot be zero. b. Given…

A: In five digit following digit can be filled in following ways: First digit can be filled by…

Q: ONLY FILL IN THE NUMERICAL VALUE OF THE ANSWER. How many posible combinations of 7 elements van be…

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Q: You can answer any 19 questions from the 21 questions on an exam. In how many different ways can you…

A: Here it is given that the order is of no importance, we will use the combination rule here where we…

Q: A company wants to have 4-digit phone extensions with the first digit not being zero. How many…

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Q: The local​ seven-digit telephone numbers in city A have 334 as the first three digits. How many…

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Q: How many four-digit even numbers can you form from the digits 1, 2, 3 and 4?

A: We have to find the number of four-digit even numbers formed from the digits 1, 2, 3 and 4. Then we…

Q: A true-false quiz contains six questions. In how many ways can a student answer the questions if the…

A: It is given that the quiz has 6 true false questions.It is also given that the student has answers…

Q: A company wants to have 6-digit phone extensions with the first digit not being zero. How many…

A: Given, No. of digit in phone extension = 6 First no- cannot be  0 Therefore no. of ways it can be…

Q: A true or false test consists of 10 questions. if all the questions are answered, in how many…

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Q: How many ways are there to list the digits {1,2, 2, 3, 4, 5, 6} so that identical digits are not in…

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Q: A True/False quiz contains six questions. In how many ways can a student answer the questions if the…

A: Given:Total number of questions = 6There are two choices, either true or false.Student answers 2…

Q: In how many different ways can a true-false test consisting of 9 questions be answered?

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Q: How many ways to arrange 5 books on the shelf exist if two definite books are not placed together.

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Q: A true-false test contains 25 questions. In how many different ways can this test be completed?…

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Q: How many ways are there to put 5 balls in 2 boxes if the balls are distinguishable and the boxes are…

A: Total number of distinct boxes=n=2 Total number of distinct balls=r=5

Q: How many three-letter "words" can be made from 8 letters "FGHIJKLM" if repetition of letters (a) is…

A: Permutation: It defines the number of possible ways an object can be arranged or ordered. The…

Q: How many different tests each with 15 questions can be constructed from a test blank containing 32…

A: Combination: The number of different selections of ‘r’ elements from a set of ‘n’ elements (order…

Q: There are 10 students in a class. In how many ways can an instructor give at least one student a…

A: There are 10 students So sample size, n= 10 And we've to find ways for at least 1 student. So r= 1

Q: How many ways are there to choose three different numbers each between one and a hundred so that…

A: There can be two possibilities only 1) All the three numbers are even. 2) One number is even and two…

Q: ) Students need to answer 8 out of 10 questions in mathematics exam. In how many ways can a student…

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Q: An exam  is made up of  hundred true or false questions. How many different ways can a student…

A: The number of permutations of n  objects taken r at a time when repetition of objects is allowed is…

Q: How many 3-digit number can be formed from the digits 0,1,2,3  a. if no two digits are to be the…

A: * SOLUTION :-  from the given information the calculation is given below

Q: A true or false test consist of 10 questions. If all the questions are answered, in how many…

A: Given that all questions are true or false type. So each question has 2 choices.  There are total 10…

Q: A company wants to have 7-digit phone extensions with the first digit not being zero. .... How many…

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Q: How many 5-letter word (even without meaning) can be created from the letters of the word "THERMO S"…

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Q: How many distinct ways are there to arrange 3 clear marbles, 4 yellow marbles, and 2 orange marbles…

A: Given problem:- How many distinct ways are there to arrange 3 clear marbles, 4 yellow marbles, and 2…

Q: A true-false quiz contains 15 questions. In how many ways can a student answer the questions if the…

A: A true-false quiz contains 15 questions. The number of ways such that student answer 7 false…

Q: A test contains 100 true/false questions. How many different ways can a student answer the questions…

A: See the attachment

Q: How many ways are there to list the digits 1, 1, 2, 2, 3, 4, 5 so that the digit 3 and 4 are not in…

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Q: In one state the license plate “numbers” consist of three numerical digits followed by two upper…

A: Consider a problem in which there are n vacant inline spots, each of the spots are to be filled by…

Q: How many three-letter "words" can be made from 6 letters "FGHIJK" if repetition of letters (a) is…

A: Given 6 letters is "FGHIJK"

Q: In a certain state, all car license plates have four capital letters followed by three digits. How…

A: Given Car license plates have 4 (A to Z) capital letters followed by 3 (0 to 9) digits

Q: How many three-digit numbers is there such that when the middle digit is removed they become a…

A: Let the three digit number be xyz. then on removing the middle digit, the two digit number will…

Q: You need to have a passwork with 6 letters followed by 2 odd digits between 0 and 9 inclusive. If…

A: The answer is attached below,

Q: How many ways can be made out of the letters in the word HONESTY taking four letters at a time?

A: Given : A word HONESTY

Q: How many four digits numbers can be formed from the digits 1 2 3 4 5 6 7 if repetition is not…

A: We have to make four digit numbers without repetition. Here we have 7 digits (1,2,3,4,5,6,7) and we…

Q: Assume that the test has 14 questions, each with 3 choices for the answer. An answer sheet has one…

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Q: How many numbers between 100 and 999 (inclusive) are divisible by neither 4 nor 5?

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Q: If n EN and n < 2000, how many numbersn have the property that the sum of the digits of n and the…

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Q: There are 100 people consisting of 50 married couples in a room. Assuming that no husband or…

A: Solution: The objective is to find how many handshakes in a room.

Q: If radio station call letters must begin with either K or W and must include either two or three…

A: Given: Total letters = 26

Q: How many 3-digit numbers with no repeated digits using 4, 5, 6, 7, 8 can be a. less than 520? b.…

A:

Q: 100 students were interviewed: 28 took PE, 31 took BIO, 42 took ENG, 9 took PE and BIO, 10 took PE…

A: Assume, P, B and E, be the sets representing the students who took Physical education (PE), Biology…

Q: How many three-letter "words" can be made from 7 letters "FGHIJKL" if repetition of letter (a) is…

A: The given letters are FGHIJKL are have to find the no of three letterwords can be formed if…

Q: How many even number more than 10 but less than 800 can be formed from the digits 1, 4, 5, 6, 8 and…

A: even number more than 10 but less than 800 can be formed from the digits 1, 4, 5, 6, 8 and 9