# Waecmaths

Title waecmaths question
Question 27

Which of the following is NOT a probability of Mary scoring 85% in a mathematics test?

Question 35 The pie chart shows the distribution of 600 mathematics textbooks for Arts, Business, Science and Technical classes.

How many textbooks are for the Technical classes?

Question 36 The pie chart shows the distribution of 600 mathematics textbooks for Arts, Business, Science and Technical classes.What percentage of the total number of textbooks belongs to science?

Question 4 The bar chart shows the scores of some students in a test. How many students took the test

Question 5 The bar chart shows the score of some students in a test.If one student is selected at random, find the probability that he/she scored at most 2 marks

Question 19

 Height 2 3 4 5 6 Frequency 2 4 5 3 1

The table shows the distribution of the height of plants in a nursery. Calculate the mean height of the plants

Question 25

Which of the following is a measure of dispersion?

Question 43

If a number is selected at random from each of the sets P = {1, 2, 3} and Q ={2, 3, 5}. Find the probability that the sum of the number is prime

Question 46

The probability of an event P happening is $\tfrac{1}{5}$ and that of event Q is $\tfrac{1}{4}$. If the event are independent, what is the probability that neither of them happens

Question 27

Given that the mean of the scores 15, 21, 17, 26, 18 and 29 is 21. Calculate the standard deviation of the scores.

Question 28

A bag `contains 4 red and 6 black ball of the same size. If the ball are shuffled briskly and two ball are drawn one after the other without replacement . Find the probability of picking ball of different colours

Question 38

The mean age of R men in a club is 50 years. Two men aged 55 and 63, left the club and the mean age reduced by 1 year. Find the value of R

Question 50

The mean of the number 2, 5, 2x and 7 is less or equal to 5. Find the range of values of x

Question 28
 Age (Years) 13 14 15 16 17 Frequency 10 24 8 5 3

The table shows the age of students in a club.

How many students are in the club.

Question 29
 Age (Years) 13 14 15 16 17 Frequency 10 24 8 5 3

The table shows the age of students in a club

Find the median age.

Question 30

The figure is a pie chart which represents the expenditures of a family in a year. If the total income of the family was Le 10,800,000.00, how much was spent on food? Question 32

The marks of eight students in a test are: 10, 4, 5, 14, 13, 16 and 17. Find the range.

Question 45
Questio 28

In an examination, Kofi scored x% in Physics, 50% in Chemistry and 70% in Biology. If the mean score for the three subjects was 55%, find x

Question 29

What is the median of the following scores 22, 41, 35, 63, 82, 74 ?

Question 42

The pie shows that the distribution of 4320 students who graduated from foru Department in a university.

How many students from the Science? Question 43

If a student is picked at random from the four Departments, what is the probability that he is not from the Education Department Question 50

Find the mean deviation; 10, 12, 14, 15, 17, 19

Question 26

The table gives the distribution  of the marks of a number of students in a test

 Marks 1 2 3 4 5 6 Frequency 5 3 6 4 2 5

Find the mode of the distribution

Question 28
 Ages 1 2 3 4 5 Number of Children 2 3 5 6 4

The table shows the ages (in years) of twenty children chosen at random from a community

What is the mean age?

Question 29
 Ages 1 2 3 4 5 Number of Children 2 3 5 6 4

The table shows the ages (in years) of twenty children chosen at random from a community

What is the median of the distribution?

Question 47

Which of the following is not a measure of central tendency?

Question 26

The population of students in a schools is 810. If this is represented on a pie chart. Calculate the sectoral angle for a class of 72 students.

Question 27

The scores of twenty students in a test are as follows 44, 47, 48, 49, 50, 51, 52, 53, 53, 54, 58, 59, 60, 61, 61, 63, 65, 67, 70, 73, 75. Find the third quartile

Question 28
 Scores 0 – 4 5 – 9 10 – 14 Frequenct 2 1 2

The table shows the distribution of the scores of some students in a test. Calculate the mean score.

Question 35

Which of the following is used to determine the mode of a grouped data?

Question 44

Calculate the mean deviation of 5, 3, 0, 7, 2, 1

Question 28

Find the mean of the numbers 1, 3, 4, 8, 8, 4 and 7

Question 28

The average age of a group of 25 girls is 10 years. If one girl aged 12 years and 4 months joins the group, find, correct to one decimal place, the new average age of the group.

Question 29 The bar chart show the statistics of the number of passes in an examination in a school from 2001 to 2004. What is the ratio of the total number of passes to the total number of failures

Question 30
 Marks 0 1 2 3 4 5 Frequency 7 4 18 12 8 11

The table gives the distribution of marks obtained by a number of pupils in a class test.

Question 31

 Marks 0 1 2 3 4 5 Frequency 7 4 18 12 8 11

The table gives the distribution of marks obtained by a number of pupils in a class test.

Question 47

Calculate the variance 2, 3, 3, 4, 5, 5, 5, 7, 7 and 9

Question 26

The mean of 1, 3, 5, 7 and x is 4. Find the value of x

Question 27

Find the median of 2, 1, 0, 3, 1, 1, 4, 0, 1 and 2