Semester 2 Revision Quiz

Find the mean, median and mode for this data set: 30 31 33 23 29 31 21 15 24 23

(a)  

Choose the incorrect statement about the box plot below.

• The range is 36

• Fifty per cent of values are between 36 and 51

• The median is 42

• Twenty-five per cent of values are below 36

• The interquartile range is 20

Write algebraic expressions to represent the following.

The product of m and 7

(a)  

Write algebraic expressions to represent the following.

The cost of 3 movie tickets at m dollars each

(a)  

Evaluate the following when x=2, y=−1 and z=5:

yz − x

Mathematical Equivalence

ON

Evaluate the following when x=2, y=−1 and z=5:

x(y+z)

Mathematical Equivalence

ON

Simplify: 3mn + 2m − 1 − nm

(a)  

Expand and simplify the following: −3(2x+5)

(a)  

Solve for x: 7x−4=10

(a)  

The algebraic expression that represents 2 less than 3 lots of n is:

• 3(n−2)

• 2−3n

• 3n−2

• 3+n−2

• n