Independent work RFEI Mathematics №4 15 tasks
Replenishment date: 14.06.2013
Content: matematika_samost_4_15_z.rar (208.09 KB)
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Seller discounts
for all goods
for all goods
The goods are given a discount for regular customers.
If the total purchases from a GoodChecking seller are greater than:
If the total purchases from a GoodChecking seller are greater than:
the discount is: 3%
Description
Independent work number 4 Mathematics 15 assignment.
Answers to 15 tasks are given, in the form of a table.
All tasks are contained in a separate file.
Tasks for comparison:
Problem 1. There are 6 packs of markers of different colors on the shelf of the shopping center. How many color combinations can be made from them if the markers are packed in one line?
A) 720; B) 24; C) 60.
Problem 2. How many permutations of the letters of the word "business" exist, in which the letter "b" is in the first place, and the letter "c" is at the end of the word?
A) 120; B) 24; C) 60.
Problem 3. How many three-letter "words" can be made from the letters of the word "ACCOUNTING"? Any sequence of letters is considered a word.
A) 10; B) 24; C) 60.
Task 4. How many ways can you seat the 6 participants at the round table?
A) 120; B) 15; C) 30.
Problem 5. Two hundred respondents were asked the question: "^^ Do you have pets at home?" Eighty-four people answered yes. What is the relative frequency of a positive response in this experience?
A) 0,84; B) 0,42; C) 0,16.
Problem 6. Of the 100 questions offered for the mathematics exam, the student learned 75 questions. What is the likelihood that a student will get the question they have learned on the exam?
A) 0,75; B) 0,25; C) 0,34.
Problem 7. There are 20 packs of butter on the shelf of the supermarket. Of these, 13 packs of chocolate butter, 7 packs of butter "Krestyanskoe". What is the probability of taking a pack of Krestyanskoe butter from the shelf at random?
...
Problem 15. Find the mathematical expectation of the number of defective cars out of 1000 cars at the Kursk station, if each car can be defective with a probability of 0,03.
A) M (X) = 10; B) M (X) = 30; B) M (X) = 100.
Answers to 15 tasks are given, in the form of a table.
All tasks are contained in a separate file.
Tasks for comparison:
Problem 1. There are 6 packs of markers of different colors on the shelf of the shopping center. How many color combinations can be made from them if the markers are packed in one line?
A) 720; B) 24; C) 60.
Problem 2. How many permutations of the letters of the word "business" exist, in which the letter "b" is in the first place, and the letter "c" is at the end of the word?
A) 120; B) 24; C) 60.
Problem 3. How many three-letter "words" can be made from the letters of the word "ACCOUNTING"? Any sequence of letters is considered a word.
A) 10; B) 24; C) 60.
Task 4. How many ways can you seat the 6 participants at the round table?
A) 120; B) 15; C) 30.
Problem 5. Two hundred respondents were asked the question: "^^ Do you have pets at home?" Eighty-four people answered yes. What is the relative frequency of a positive response in this experience?
A) 0,84; B) 0,42; C) 0,16.
Problem 6. Of the 100 questions offered for the mathematics exam, the student learned 75 questions. What is the likelihood that a student will get the question they have learned on the exam?
A) 0,75; B) 0,25; C) 0,34.
Problem 7. There are 20 packs of butter on the shelf of the supermarket. Of these, 13 packs of chocolate butter, 7 packs of butter "Krestyanskoe". What is the probability of taking a pack of Krestyanskoe butter from the shelf at random?
...
Problem 15. Find the mathematical expectation of the number of defective cars out of 1000 cars at the Kursk station, if each car can be defective with a probability of 0,03.
A) M (X) = 10; B) M (X) = 30; B) M (X) = 100.
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