Arithmetic mean
Types of exercises: arithmetic mean, a missing value and the mean, mean from a table of marks.
Exercises are drawn at random from a large bank - every click gives a different set.
Solved: 0 of 10
Problem
The mean age of the 6 volleyball players in a team is 23 years. When the coach is included, the mean age of these 7 people is 26 years. How old is the coach?
Problem
Five pupils ran 60 m. Their times were: 10.3 s, 10.2 s, 11.3 s, 10.3 s, 8.5 s. Find the mean time of these pupils.
Problem
In a class of 25 pupils the marks from a test were as follows: mark 2: 4 pupils mark 3: 8 pupils mark 4: 7 pupils mark 5: 6 pupils Work out the mean mark.
Problem
Ola's maths marks this term are 2, 4, 2 and 2. What mark does she need in the next test for the mean of all her marks to be 3.2?
Problem
A weather station measures the air temperature 4 times a day. One day the readings were: 3.6°C, −3.8°C, 1.2°C, −6.2°C. Find the mean temperature from these 4 readings.
Problem
In a class of 16 pupils the marks from a test were as follows: mark 2: 4 pupils mark 3: 5 pupils mark 4: 6 pupils mark 5: 1 pupil Work out the mean mark.
Problem
Jacob's maths marks this term are 6, 3, 5 and 6. What mark does he need in the next test for the mean of all his marks to be 5.2?
Problem
A weather station measures the air temperature 4 times a day. One day the readings were: −5.6°C, −6.3°C, −4.2°C, 3.7°C. Find the mean temperature from these 4 readings.
Problem
In a class of 16 pupils the marks from a test were as follows: mark 2: 1 pupil mark 3: 5 pupils mark 4: 3 pupils mark 5: 7 pupils Work out the mean mark.
Problem
Anna's maths marks this term are 5, 2, 6 and 2. What mark does she need in the next test for the mean of all her marks to be 4?
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