Advanced level 2025 centre mock business mathematics 3
Advanced level 2025 centre mock business mathematics 3
QUESTION 1
The sales figures of two days of the (Monday and Saturday) in millions of francs CFA are
presented on the table below;
| Monday(Xi) | 57 | 60 | 52 | 49 | 56 | 46 | 51 | 63 | 49 | 57 |
| Saturday(Yi) | 86 | 93 | 77 | 67 | 81 | 70 | 71 | 91 | 62 | 82 |
REQUIRED
a) Represent the Data above on a graph
b) The regression line for Y on X
c) The regression line for X on Y
d) The product moment correlation coefficient
e) The coefficient of Determination and the unexplained variation
___________________________________________________________________________(20marks)
QUESTION 2
You are given the following set of numbers 2, 3, 6, 9.
(a) Calculate the mean and standard deviation
(b) Two numbers a and b, are to be added to this set of four numbers, such that the mean is
increased by 1 and the variance is increased by 2.5. Find a and b.
___________________________________________________________________________(20marks)
QUESTION 3
The prices and quantities of food items sold varied as stated in the table below in the western
region.
| FOOD ITEMS | QUANTITIES(000)kg | Prices(FCFA) | ||
| 2016 | 2017 | 2016 | 2017 | |
| MAIZE | 350 | 402 | 1640 | 1930 |
| GARI | 64 | 92 | 1370 | 1590 |
| RICE | 96 | 86 | 2860 | 2590 |
REQUIRED; Calculate
a) The laspeyeres price and quantity indices
b) The paasche price and quantity indices
c) The Fishers’ price and quantity indices
d) The global index
___________________________________________________________________________(20marks)
QUESTION 4
Two digit numbers are to be formed from the numbers 2, 5, 8, 6, 9. A digit can be repeated.
| i) ii) |
Show the sample space on a table Calculate the probability that the number formed is even and is divisible by four |
iii) Calculate the probability that any number is divisible by two
iv) Calculate the probability that a number greater than 60 is formed
