Average score math problems, calculation questions about average scores?

The range of values that can be obtained by rounding to an approximate value to one decimal place is:

Greater than or equal to and less than).

After removing the highest and lowest scores from the 9 judges, the actual value is the score of 7 people.

So the athlete's effective total score should be:

Greater than or equal to the point and less than.

Since the scores given by each referee are whole numbers, the sum of the scores is also an integer.

Between and only 66 is an integer.

That is, the athlete's effective total score is 66 points.

The score can be calculated as: 66 7=

Accurate to two decimal places.

Rounding to an approximate value to one decimal place, the athlete scores.

The athlete's score is between and .

The integer between the sum is 66, so the 7 judges give the athlete a score of 66.

If it is accurate to two decimal places, the athlete should score 66 7

Because one of the highest scores and one of the lowest scores are to be removed, there are actually 7 judges who are scoring.

The score is accurate to 1 decimal place, i.e., the total score is approximately equal to = Because it is accurate to 1 decimal place, the error between the approximate score and the actual score is less than that of the total score.

So the actual total score is between one and to.

That is, the actual score belongs to the interval (, because the score is an integer, the total score is 66

66 divided by 7 to two decimal places.

The sum of the judges' scores was 66

So the answer should be.

The arithmetic average score is also called the arithmetic average, and the arithmetic average score is to add the scores of all your subjects first, and then the sum of the scores of all the subjects is your arithmetic average score. Examples:English - 80 points.

French - 75 points. German - 82 points. Then your average score should be:

80 + 75 + 82) 3 = 79 points.

The weighted average score is calculated by multiplying the student's grade in each subject by its weighted weight.

It is worth noting that the credits for each subject are different, for example, your main course Business Management is 6 credits, and your elective course English is 4 credits, and the credits of one subject are the weight of the corresponding subjects.

The arithmetic mean, also known as the mean, is the most basic and commonly used average index in statistics, which is divided into simple arithmetic mean and weighted arithmetic mean. It is mainly suitable for numerical data, but not for quality data. Depending on the form of representation, the arithmetic mean has different calculation situations and formulas for the source bridge.

The arithmetic mean is a special form of the weighted average (it is special in that the weights of the items are equal), when in the practical problem, when the weights are not equal, the weighted average should be used when calculating the average, and when the weights are equal, the arithmetic average should be used to calculate the average.

Simple arithmetic mean is mainly used for raw data that is not grouped. Let a set of data be x1, x2 ,..xn, the simple arithmetic mean is calculated as: m=(x1 x2 ..xn)/n

The weighted arithmetic mean is primarily used to process data that has been grouped and collated. Let the raw data be divided into k groups, and the values in each group are x1, x2, ,..xk, the frequencies of each group were f1, f2 ,..

fk, the weighted arithmetic mean is calculated as: m=(x1f1 x2f2 ..xkfk)/(f1 f2 ..

fk) <> characteristics of arithmetic mean:

The arithmetic mean is a good concentrated quantity, which has the advantages of being responsive, rigorous in determination, concise and easy to solve, simple in calculation, suitable for further calculation, and less affected by sampling changes.

Arithmetic mean is susceptible to extreme data because the mean is sensitive and late, and each big or small change in the data can affect the final result.

It also has an incombustible relationship with variance.

Solution: A total of 14 70 = 980 (points).

Now reached: 66 6 = 396 (points).

The rest of the old people are as average as each subject: (980-396) 8=73 (the first divination score) so the answer is: 73 points.

The college entrance examination mathematics score is 150 points, and this year, the average score of some provinces in the country with a volume of mathematics is: Guangdong: Hunan:

Fen Shandong: Fen Jiangsu: Fen

The difficulty of this set of test papers is mainly reflected in three aspects: first, the proportion of basic questions is small, and there are more intermediate questions, which leads to a slightly greater difficulty in the whole body; The second is to test the in-depth understanding and comprehensive mastery of knowledge, for example, the last question of the multiple-choice question tests the knowledge point of "the relationship between the symmetry of derivatives and the symmetry of functions", which is easily ignored by many students; The three-liquid beam is a large amount of calculation, especially the amount of calculation used to solve the problem with the general method, for example, if the Taylor formula is not used in problem 7, then the amount of calculation is very large.

In addition, in the previous mathematics papers, the first question of the conic curve is generally more examined to find the equation of the curve, and this question is not very difficult.

However, in the conic curve solution question of mathematics in the new college entrance examination this year, the first small question is to find the slope of the straight line, which also invisibly increases the difficulty of the test paper and increases the psychological pressure of the candidates.

As can be seen from Figure 1, the proportions of not participating, selecting A, selecting B, selecting C, and selecting D are:

Not Attended:; Pick A (75 points):;

Pick B (80 points):;

Pick C (85 points):;

Option D (90 points of seepage and rolling):;

As can be seen from Figure 2, the total number of people is 108 + 5 = 113. Therefore, it can be known.

Pick A (75 points): 113 people;

Pick B (80 points): 113 people;

Pick C (85 points): 113 people;

Option D (90 points): 113 people;

Abandon those who did not participate, so the average score = (37 75 + 35 80 + 20 85 + 16 90) 108 = points.

The average score is the total number of points, and the result of the calculation is the average score.

Question 1: How to calculate the average score All add up and divide the number of people.

Question 2: How to calculate the overall average score of the final grade of the university? That is, take the number of credits for each of your exams, add them all up, and divide them by the total number of credits!

For example, if you have 5 courses this semester and the credits are , and your final exam results are respectively , and the return is (75x2+80x3+78x3+86x2+90x1) (2+3+3+2+1)=

Question 3: How to calculate the average score of college grades That is, take the score of each test x the number of credits in this subject, and then add them all up and divide them by the total number of credits!

For example, if you have 5 courses this semester and the credits are , and your final exam score is (75x2+80x3+78x3+86x2+90x1) (2+3+3+2+1)=

Question 4: How to calculate the average score Is it divided by the total score of a single subject The total score of a single subject The number of people in a single subject The average score of a single subject The total score of each subject The average score of each subject of an individual.

Question 5: How is the average score of the exam calculated? See which average score you're going to calculate.

If it's everyone's average score, add up the scores for missing homework and divide it by the number of homework.

If it's the average of the class's total scores, add up the total scores for everyone in the class and divide them by the total number of people.

If it's the class average, add up each person's average and divide it by the total number of students or divide the average of the total score by the number of homework.

Question 6: How to calculate the total average score in Excel? Classification summary - classification field - column B header - summary method - average value - selected summary item - column H header - sure to beat the missing envy.

Question 7: How to calculate the average IELTS score Divide the score of the four subjects by 4, and the score obtained, if the decimal place is more than or, the score will increase, for example, if the average score is above, it is, less than, it can only be 5, if it is above, it is 6 points, if it is below (not included, it can only be calculated, I hope to understand.)

Science: 89 5 90 2 84 2 97

If the language score is x, then the source year: x x 10 = 84 2, so x = 79, and the language is 79 points, and the English language is 89 points.

Character and Society: 86 2-89=83

Math: 90 2-83=97