Statistics questions | form two Basic Mathematics

The heights of some plants grown in a laboratory were recorded after 5 weeks. The results are shown in the following table:

(a) Calculate the mean and mode.
(b) Draw a cumulative frequency curve for the data.
(c) Estimate the median from the graph.

Answer / Solution

UNSOLVED

In a survey of the number of children in 12 houses, the following data resulted: 1, 2, 3, 4, 2, 2, 1, 3, 4, 3, 5, 3
(a) Show this data in a frequency distribution table.
(b) Draw a histogram and a frequency polygon to represent this data.
(c) Calculate the mean and mode number of children per house.

Answer / Solution

UNSOLVED

The following table gives the scores of sixty students in a Basic Mathematics test.

Calculate:
(a) The mean score if the assumed mean is obtained from the mid mark of the modal class;
(b) The median;
(c) The range.

Answer / Solution

UNSOLVED

A survey was done among students in a certain school in order to find the most popular subject. In this survey each student voted once and the results were as follows.

Show this information in a pie chart.

Answer / Solution

UNSOLVED

The marks of 61 students are presented in the following table :

From the table answer the following questions:

1. Which mark was scored by few students?
2. What was the highest mark?
3. If 50% was the pass mark in the examination , how many students passed the examination?
4. Which mark was scored by many students?

Answer / Solution

UNSOLVED