The table shows the mean monthly temperatures in Alcudia for the last 2 years in degrees Celsius. °C Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Last Year 9 10 11 14 19 22 27 29 21 18 11 6
2 Years Ago 7 11 10 13 17 23 25 25 20 18 12 9

What is the difference in the range of temperature between the two years?

°C

What was the modal temperature last year?
°C

What was the median temperature 2 years ago?
°C

(a) The difference is 5

(b) No mode

(c)

Step-by-step explanation:

Given

The above data

Solving (a): Difference in their range

Range is calculated as:

For last year:

For 2 years ago

The difference is:

Solving (b): The modal of last year

This is the entry with the highest frequency

From "last year" data, each of the entry has a frequency of 1.

This implies that there is no mode

Solving (c): Median of last 2 years

First, arrange in ascending order

The median is then calculated as:

This means that we calculate the average of the 6th and 7th entry