Question 1:   This table shows grades of students that took examination from Physics. What is the total number of students that took examination from Physics?

Grade	Tally	Frequency
A	$\cancel{IIII}II$
B	$\cancel{IIII}\cancel{IIII}III$
C		19
D	$\cancel{IIII}IIII$
E	$\cancel{IIII}\cancel{IIII}I$

Question 2:   The line graph below shows an average temperature in Berlin over the 5 month period:



What was the temperature in April?

Question 3:   Using the line graph from the question 2, determine in which month there was the highest increase in temperature?

Question 4:   Using the line graph from the question 2 calculate the range of temperatures

Question 5:   The following pictogram shows the number of airplane operations, i.e. take-offs and landings, in one of the English airports over the 5 weeks:

represents 8 operations

Week
1
2
3
4
5

How many operations there were in total?

Question 6:   Using the pictogram from the question 5, calculate the mean value for each week

Question 7:   The following table represents an income and expenditure of a client of a financial advisor:

Age	45	46	47	48	49
Income	£23500	£24300	£25100	£25900	£26700
Expenditure	£18700	£28500	£23300	£26400	£27900

Which of the bar charts illustrates the data?

Question 8:   Using the table from the question 7, determine what is higher - income or expenditure, and the difference between them

Question 9:   The following table represents the number of children in families. What is the modal number of children in each family?

Number of Children	Frequency
0	12
1	15
2	11
3	6
More	5

Question 10:   Using the table from the question 9, determine, what is the median number of children per family?