2.1 Maths quiz
Question 1
The price of a cup of coffee increases from £2.00 to £2.30.
Question 2
Question 3
a.
1 significant figure
b.
2 significant figures
c.
3 significant figures
d.
the number of significant figures doesnt matter.
The correct answer is b.
b.
Each number is quoted to two significant figures so the answer should also be quoted to two significant figures.
Question 5
Question 6
Re-arrange the following equation so that B is the subject. A = BC
A = BC
Answer
The answer is
To rearrange A = BC to make B the subject, both sides of the equation are divided by C. This cancels out the C on the right hand side leaving just B and on the left hand side.
Question 7
Question 8
a.
J s
b.
c.
The correct answer is b.
Question 10
Look at the following table of data and identify the dependent and independent variables.
| Month | Sales (1000s) | Advertising Pounds (1000s) |
|---|---|---|
| January | 100 | 5.5 |
| February | 110 | 5.8 |
| March | 112 | 6 |
| April | 115 | 5.9 |
| May | 117 | 6.2 |
| June | 116 | 6.3 |
| July | 118 | 6.5 |
| August | 120 | 6.6 |
| September | 121 | 6.4 |
| October | 120 | 6.5 |
| November | 117 | 6.7 |
| December | 123 | 6.8 |
Using the following two lists, match each numbered item with the correct letter.
-
Sales
-
Advertising Pounds
a.Independent variable
b.Dependent variable
- 1 = b
- 2 = a
Answer
‘Sales’ is the dependent variable as it is being used to measure the effect of the independent variable, the advertising spend.
‘Advertising Pounds’ is the independent variable as it is the variable that is being investigated.
Download high resolution figure83.8 KB Image (JPEG)a.
between 1975-1980
b.
between 1985-1990
c.
between 1995-2000
d.
between 2005-2010
The correct answer is c.