Statistics
GCE Mathematics

The table below shows the scores of 40 students in a Mathematics test. Scores: 10-19 20-29 30-39 40-49 50-59 60-69 70-79 Frequency: 3 5 7 10 8 5 2 (a) Calcul…

The ages, in years, of 8 teachers in a school are: 32, 45, 28, 50, 36, 41, 29, 39 (a) Find the mean age of the teachers. (b) Calculate the median age. (c) Find the interquartile range of the distribu…

The scores of 8 students in a test are: 5, 8, 7, 6, 9, 5, 7, 5. What is the modal score?

The table below shows the distribution of marks scored by students in a class test. If the median mark is 4, find the value of x. Mark: 2, 3, 4, 5, 6 Frequency: 3, x, 5, 4, 2

The numbers 3, 7, x, 11 and 9 have a mean of 8. What is the value of x?

The pie chart shows how a student spends his 24-hour day. If the sector representing sleep subtends an angle of 120° at the centre, how many hours does the student spend sleeping?

The table shows the frequency distribution of the heights (in cm) of 40 students. Height (cm): 150–154, 155–159, 160–164, 165–169 Frequency: 8, 14, 12, 6 Calculate the mean height of the students.

The mean of the numbers 3, 2x, 5, 7 and 2 is 6. Find the value of x.

The ages of 5 students are 12, 15, 14, 13 and 16 years. Find the mean age.

P(red) on a die.

Mean of 1, 2, 3, 4, 5.