Statistics - practice for 12 year olds - page 2 of 7
Number of problems found: 132
- On the number line
What number is exactly in the middle between 9.8 and -2.4 on the number line? - Increased 83221
There are 12 players on the team, with an average height of 185cm. If the average height of a new player increased by 1cm after he joined the team, what would be his height? - Collection 64884
Five friends compared how much old iron they brought to the collection. On average, it was 55 kg, but Ivan got only 43 kg. How many kg on average did they bring without Ivan? - Balance
The rod is 1.9 m long hanging weights 4 kg and 1 kg on ends. Where is the center of the rod (distance from weight 4 kg) to be in balance?
- 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? - Determine 68804
The basket contains five red apples with an average weight of 125 grams and one yellow apple. The average weight of all apples in a basket is 120 grams. Determine the weight of the yellow apple in grams. - All needs
All need a mean score of 92 or higher on four texts to get an A. So his scores are 94. 90. and 84 What score on the fourth test will get him an A? - Trees avg
The worker planted 96 trees on Monday, 120 on Tuesday, and 61 on Wednesday. How many trees did he plant on Thursday if he averaged 105 trees per day? - The average
The average of one set of 4 numbers is 35. The average of another set of numbers is 20. The average of the numbers in the two sets is 30. How many numbers are there in the other set?
- Average 20173
The average of the two numbers is 2.8. One number is 5. What is the second number? - Basketball team
The heights of five starters on redwood high's basketball team are 5'11", 6'3", 6'6", 6'2" and 6'. The average height of these players is? - 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 - Kristina 5267
It is 2 cm higher than the average height of the pupil in the class. Kristýna is missing up to an average height of 7 cm. How taller is Samo taller than Kristina? - Water
Mix 67 l of water with a temperature of 67 °C, 17 l warm of 32 °C, and 79 l water of 87 °C. What is the temperature of the mixed water immediately after mixing?
- Roxville
The temperature in Rockville decreased by 15 degrees in five hours. What was the average decrease in temperature per hour? Write your answer as an integer. - MPG
$m miles a week fills up twice a week. Each fill is $g gallons. What is the gas mileage of the car? - Rose spends
Rose spends 2 1/3 hours studying Math, 1 3/4 hours studying English, and 2 1/4 hours studying Science. Find her average time studying the three subjects. - 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?
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