Statistics - practice for 12 year olds - page 3 of 7
Number of problems found: 137
- Distance of numbers
Which number has the same distance from the numbers -5.65 and 7.25 on the numerical axis? - Temperature change
The mean temperature change is -3.2°F per day for five days. What is the total change over the five days? - Arithmetic 65234
Katka is six years old. The arithmetic mean of the ages of Anna and Paul is 12 years. What is the arithmetic average age of Katka, Anna, and Paul? - Average
The average of 5 numbers is 108. What is its sum?
- In center
What number lies in the center between a quarter of a fifth and a half of a third on the number axis? - Certificate
There are 31 students in a class. The mathematics score wasn't worse than 2. The average score in mathematics was 2. How many students have a score of one, and how many have a score of 2? - Arithmetic 82287
If the arithmetic mean of the numbers a1, a2, a3, a4, and a5 is the number A, the arithmetic mean of the numbers a1, a2, a3, and a4 is the number B, then what is a5 equal to? - Previous 43371
The sum of three natural numbers, five greater than the previous one, is 204. Which are the numbers? - Arithmetic 72544
The arithmetic mean of two numbers is 12. The first number is 5. What is the value of the second number?
- Arithmetic average
The arithmetic mean of the five numbers is exactly 8. The sum of these four numbers is 30. What is the fifth number? - AVG of INT
What is the average of the integers from 9 thought 52 inclusive? - Sunflower Field
The trapezoidal sunflower field is located between two parallel paths spaced 230 meters apart. The lengths of the parallel sides of the field are 255 m and 274 m. How many tons of sunflower will come from this field if the hectare yield is 2.25 tons? - Average
The arithmetic mean of the two numbers is 67.5. One number is -31. Calculate the second number. - Insert AP member
Insert arithmetic means between 75 and 180.
- Find the mean
Find the number between 13 and 29. - Trapezoid 45
Trapezoid with: Area: 345 1/2 sq cm base 1= 15 1/3 cm height= 4 1/5 cm What size has base 2? - Registers 2827
When eight cash registers are open in the grocery store, customers wait for an average of 12 minutes. What will be the waiting time if the other two cash registers open? - Bases
The length of the bases trapezium is in ratio 4:5. The length of the midline is 15. How long are the bases of a trapezoid? - Class
In the 7C class, there are ten girls and 20 boys. Yesterday was missing 20% of girls and 50% of boys. What percentage of students are missing?
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