Arithmetic + mean - practice problems
Number of problems found: 101
- Average grade
Find the average grade of Nika: 87.3 86.4 92.5 94.6 95.8 Using the Honors Guide, Is it correct that Nika's rank is Second Honor? Explain your answer. Lowest Grade Average ; Rank 90-92; First Honor 88-90; Second Honor 85-88; Achiever - The number 7
The number of faulty units in a carton of a particular product is known to be normally distributed with a Mean of 10 and a variance of 25. What portion of a given carton of the product is expected to contain___ faulty units? (I) less than 8 (ii) more than - A meteorologist
A meteorologist calculated that the average temperature over the last four years dropped a total of 20 degrees. What integer represents the average change in the temperature per year? - Dataset: 2
Dataset: 4, 9, 7, 8, 5, 2 a. What number is n in xn? b. Find ∑x c. Find ∑(x-2)2 d. Find √∑(x-2)²/6
- Miss Patel
Miss Patel thinks her class of 20 students will average 95 on a math test. Before she grades the last student's test, the class average is 97. What is the lowest possible score on the 20th test for the class to average 95? - The average 12
The average of the first five numbers drawn was 2499. the first four numbers were 4165, 320, 7142, and 64. What was the fifth number? - Coefficient of skewness
For the data set whose Karl Pearson's Coefficient of skewness = -2.25, variance is 16, and Mean is 35, then its median value will be: - The average 10
The average of three fractions is 2 3/8. If two of the fractions are 2 1/5 and 1 2/3, what is the total value of the three fractions? - Mean and sum
If the arithmetic mean of 6 numbers is 45, what is the total sum of these numbers?
- A potato
A potato farmer incurred a total cost of $1600 and $2500 from producing 5 and 8 potato bags, respectively, in 2 separate weeks. Find the cost of x bags. - Suppose 12
Suppose in a physics test involving 30 students, and four scored 75%, eight scored 60%, twelve scored 50%, and six scored 30%. Calculate the mean of the group and the standard deviation. - Offset the mean
The mean of 16 numbers is 8. If 2 is added to every number, what will be the new mean? - The following 4
The following are the scores of 10 students in a quiz in Teaching Mathematics in the Intermediate Grades subject: 14, 16, 13, 17, 16, 16, 13, 19, 17, and 13. Find the mode and interpret it - Double 23
Double 1.25, then subtract 0.75. What do you get?
- Equivalent fractions 2
Write the equivalent multiplication expression. 2 1/6÷3/4 - Four-thirds 3852
Anton said: I have a natural number x. I'll get three times as much if I increase it to four-thirds. What number did Anton mean? - Railways - golden parachutes
As often happens in Slovakia habit, the state's financial institution takes from poverty, and gorillas give. A hardworking punishing taxes. Let's look at a short work of director Railway Company ZSSK - Mgr. P. K. : 18 months 'work' as director reduction a - Classroom 64434
In physics class, students estimated the volume of the trash can in the classroom. There is a record of the answers of 20 pupils on the board. The actual volume of this dustbin was 12 liters. By how many liters does the average student estimate differ fro - Gas prices 2021
According to the SPP price list in 2021, the price of natural gas, together with its supply, is as follows: D1 - we cook. Fix 3.34 euros/month and 0.0479 euros/kWh (1 cubic meter of gas is approximately 10.555 kWh. It is called combustion heat and changes
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Looking for help with calculating arithmetic mean? Arithmetic - practice problems. Mean - practice problems.