Mean - math word problems - page 15 of 39
Number of problems found: 773
- Cyclist stage speed
In the first stage, the cyclist covered 70 km at a speed of 22.1 km/h. In the second stage, he covered 40 km (a total of 110 km), and his overall average speed increased to 22.9 km/h. What average speed did he achieve in the second stage? - Trash volume estimate
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 - Report card grades
Karolína does not want to reveal at home what grades she will get on her report card. She said only this: "There will be 8 marks on the report card, their arithmetic mean is 2.125, the median is 2, the mode is 1, and I will not have any 2's. How many four - Book Store
The Mabini Book Store (MBS) is reducing the prices of Mathematics books for promotion. The store has 6 Algebra books, 6 Geometry books, and 5 Statistics books to be arranged on a shelf. Books of the same kind are to be placed beside each other. How many w - Banker client probability
The banker deals, on average, with five clients a day. Find the probability that the number of clients (in one day) will be greater than 4. - Represented
The children of class 5 A wrote a maths test. The class had 29 children. After marking, there were two more grade 1 s than grade 5 s; grade 3 occurred three times; grade 2 represented twice the number of grade 1 s; grade 4 did not occur. How many students - 45 percentile
Given the following data 11 15 24 33 10 35 23 25 40 What is P45? - Class height average
In the 8 A class, the average height of 12 girls is 156 cm, and the average height of 14 boys is 172 cm. Calculate the average number of students in 8 A. - A swimmer 2
A swimmer swam 48 kilometers in d days. What is the value of d if the swimmer swam an average of 3.2 kilometers daily? - Gym age average There are three times more children in the gym than adults. The average age of adults is 44 years. What is the average age of children if the total average age of everyone in the gym is 20?
- Carp average weight
The fishery gradually sold carp weighing 2 1/2 kg, 1 5/6 kg, 1 3/5 kg, 2 1/10 kg, 2 kg, and 2 2/3 kg. What was the average weight of 1 carp? - Number line midpoint
You will find an unknown number on the number line between 428 and the unknown number 290. - 68-95-99.7 rule
Assume the resting pulse rates for a sample of individuals are normally distributed with a mean of 70 and a standard deviation of 15. Use the 68-95-99.7 rule to find the following quantities. a. Percentage of pulse rates less than 70 b. Percentage of puls - Number sum difference
The sum of the two numbers is 18, and their difference is 10. What are the numbers? Calculate the arithmetic mean of the product and the proportion of these numbers. - Average age
There are 20 students in the class. Several are 12 years old, and others are 13 years old. Find out how old is twelve when the average age of a class is: a) 12.5 years b) 12.75 years c) 12.3 years d) 12.35 years - Square root by hand
Estimate √38 to the nearest hundredths, using any of the two methods (divide and average method or square root estimate formula). - Height estimation men What is the smallest number of men we would have to choose to estimate the mean height of men with an accuracy of +, - 0.5 cm, and 95% confidence, assuming a standard deviation of 8 cm?
- Salaries
The employer increased the salaries of its three employees by an average of 30 euros. One increased his salary by € 20, the other by € 45. How many euros did he raise the salary of a third employee? - Two methods A teacher wishes to teach verbs to his English class using two methods. He randomly divided the class into two samples of 14 students each. Using Method 1, the students learned an average of 43.8 with a standard deviation of 4.6, while the second group (M
- Dividing rod
The 3 m long rod should be divided into two parts so that one is 16 cm longer than the other. Find the lengths of both parts.
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