Waecmaths
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| Question 27 |
Which of the following is NOT a probability of Mary scoring 85% in a mathematics test? |
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| 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? |
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| Question 36 |
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| Question 4 |
The bar chart shows the scores of some students in a test. How many students took the test |
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| Question 5 |
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| Question 19 |
The table shows the distribution of the height of plants in a nursery. Calculate the mean height of the plants |
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| Question 25 |
Which of the following is a measure of dispersion? |
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| 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 |
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| 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 |
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| 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. |
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| 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 |
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| 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 |
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| 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 |
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| Question 28 |
The table shows the age of students in a club. How many students are in the club. |
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| Question 29 |
The table shows the age of students in a club Find the median age. |
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| 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? |
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| Question 32 |
The marks of eight students in a test are: 10, 4, 5, 14, 13, 16 and 17. Find the range. |
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| 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 |
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| Question 29 |
What is the median of the following scores 22, 41, 35, 63, 82, 74 ? |
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| 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?
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| 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
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| Question 50 |
Find the mean deviation; 10, 12, 14, 15, 17, 19 |
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| Question 26 |
The table gives the distribution of the marks of a number of students in a test
Find the mode of the distribution |
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| Question 28 |
The table shows the ages (in years) of twenty children chosen at random from a community What is the mean age? |
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| Question 29 |
The table shows the ages (in years) of twenty children chosen at random from a community What is the median of the distribution? |
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| Question 47 |
Which of the following is not a measure of central tendency? |
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| 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. |
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| 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 |
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| Question 28 |
The table shows the distribution of the scores of some students in a test. Calculate the mean score. |
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| Question 35 |
Which of the following is used to determine the mode of a grouped data? |
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| Question 44 |
Calculate the mean deviation of 5, 3, 0, 7, 2, 1 |
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| Question 28 |
Find the mean of the numbers 1, 3, 4, 8, 8, 4 and 7 |
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| 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. |
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| 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 |
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| Question 30 |
The table gives the distribution of marks obtained by a number of pupils in a class test. |
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| Question 31 |
The table gives the distribution of marks obtained by a number of pupils in a class test. |
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| Question 47 |
Calculate the variance 2, 3, 3, 4, 5, 5, 5, 7, 7 and 9 |
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| Question 26 |
The mean of 1, 3, 5, 7 and x is 4. Find the value of x |
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| Question 27 |
Find the median of 2, 1, 0, 3, 1, 1, 4, 0, 1 and 2 |
