KCSE MATHEMATICS QUESTIONS AND SOLUTIONS ~ Topically Analyzed
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statistics ii  kcse 1996  question 19  paper 2  section bIn an agricultural research centre, the length of a sample of 50 maize cobs was measured and recorded. The recorded measurements are presented in the frequency distribution table below. Calculate
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The following table shows the frequency distribution of marks scored by 40 students in a test1/1/2024 QUESTION 7  KCSE 2023  STATISTICS II  PAPER 2  FORM 4 LEVELThe following table shows the frequency distribution of marks scored by 40 students in a test. Calculate the upper quartile mark. (3 marks)
QUESTION 22  KCSE 2021  STATISTICS II  PAPER 2  FORM 4 LEVELWorkers in a factory commute from their homes to the factory. The table below shows the distances in kilometres, covered by the workers. The mean distance covered was 14.5 km.
QUESTION 22  KCSE 2022  STATISTICS II  PAPER 2  FORM 4 LEVELFifty teachers in a sub county attended a workshop. The table below shows the distribution of the distances (d) in kilometres travelled by the teachers from their respective school to the training venue.
QUESTION 12  KCSE 2022  STATISTICS II  PAPER 2  FORM 4 LEVELThe data below represents the number of animals owned by 7 neighbours:
9, 5, 14, 6, 8, 13 and 15. Calculate, correct to the nearest whole number, the standard deviation of the number of animals. (3 marks) QUESTION 21  KCSE 2022  STATISTICS II  PAPER 1  FORM 3 LEVELThe amount of money, in Kenya shillings, spent on airtime by a group of 30 people in a period of an hour was recorded as shown below.
(a) Complete the frequency distribution table below. The systolic blood pressure of 60 patients attending a clinic was recorded as follows:KCSE 2020 MATHEMATICS ALT A PAPER 2 QUESTION 22The following are marks scored by form four student in Mathematics test.
Using an assumed mean of 54.5, calculate the a) Mean mark (4mks) b) Variance (4mks) c) Standard deviation (2mks)
PAPER 1, SECTION B, STATISTICS II, FORM 4 LEVEL, 10 MARKS A number of people are asked to cut 20cm lengths of string without measuring. Later 100 pieces are collected and measured correct to the nearest 1/10cm. the data below was collected.Using 19.7 as a working mean calculate:(a) Mean (4mks)
(b) Standard deviation (5mks)(c) State the modal class (1mk)Form 4 Mathematics
The amount of money contributed by a group of students during a fundraising for a needy student was as shown in the table below.
(a) On the grid provided draw an ogive to represent the data.
(b) Use the graph to estimate: (i) The median; (ii) The quartile deviation; (iii) The percentage number of students who contributed at least Ksh 750.50. Form 4 MathematicsForm 4 MathematicsTwo lines L_{1} and L_{2} intersect at a point P. L_{1} passes through the points (4,0) and (0,6). Given that L_{2} has the equation: y = 2x – 2, find, by calculation, the coordinates of P. ( 3 marks) Form 4 Mathematics
The table below shows the frequency distribution of heights of 40 plants in a tree nursery.
(a) State the modal class.
(b) Calculate: (i) the mean height of the plants; (ii) the standard deviation of the distribution. (c) Determine the probability that a plant taken at random has a height greater than 40 cm. Form 4 Mathematics
The mass, in kilograms, of 9 sheep in a pen were: 13, 8, 16, 17, 19, 20, 15, 14 and 11.
Determine the quartile deviation of the data. Form 1 MathematicsSuccessive moving averages of order 5 for the numbers 9,8.2, 6.7,5.4, 4.7 and k are A and B. Given that A – B = 0.6 find the value of k. Form 4 MathematicsForm 4 Mathematics
A basket ball team scored the points in 6 matches: 10, 12, 14, 16, 28 and 30. Using an assumed mean of l5. Determine the standard deviation correct to 2 decimal places.
Form 3 MathematicsForm 2 Mathematics
The frequency table below shows the daily wages paid to casual workers by a certain company
a) In the grid provided, draw a histogram to represent the above information
b.i)State the class in which the median wage lies ii) Draw a vertical line, in the histogram, showing where the median wage lies c) Using the histogram, determine the number of workers who earn shs 450 or less per day Form 4 Mathematics
The marks scored by 40 students in a mathematics test were as shown in the table below.
a) Find the lower class boundary of the modal class
b) Using an assumed mean of 64, calculate the mean mark c i) On the grid provided, draw the cumulative frequency curve for the data ii)Use the graph to estimate the semiinterquartile range 
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