Statistics questions | form two Basic Mathematics

The scores of a mathematics test by 50 Form Two pupils in a certain school are as shown in the following table.

(a) Find the value of “b” and calculate the number of students who scored 55% and above.
(b) Calculate the mean score.

Answer / Solution

UNSOLVED

The table below shows the masses in kilogrammes of Form one students at Mtakuja Secondary School

(i) Find the total number of students

(ii) Draw a frequency polygon and histogram on the same axes

Answer / Solution

UNSOLVED

The following marks were obtained by 32 students in a physics examination:
32, 35, 42, 50, 46, 29, 39, 38, 45, 37, 48, 52, 37, 58, 52, 48, 36, 54, 37, 42, 64, 37, 34, 28, 58, 64, 34, 57, 54, 62, 48, 67.
(a) Prepare a frequency distribution table using the class intervals: 24 29, 30 35 etc.
(b) Draw the histogram.
(c) Draw the cumulative frequency curve and use it to estimate the median.
(d) Find the mean mark.

Answer / Solution

UNSOLVED

The following distribution table shows the scores of 64 students in a Chemistry weekly test.

1. Calculate the mean and mode.
2. Draw the ogive and use it to estimate the median:

Answer / Solution

UNSOLVED

The information on age of employees of a certain organization is given in the frequency table below.

1. Draw on the same axes to represent the given information

1. a histogram
2. a frequency polygon

2. Calculate the mean, mode and median
3. Comment on the results on part (a) and (b) above.

Answer / Solution

UNSOLVED