Some students spend these amounts in a cafe. £2.50, £3, £1, £4, £0.50, £3, £1, £1, £2.50, £1. What is the range of the data?

Step-by-step explanation:

For finding range we will arrange it from least to greatest

0.50 1 1 1 1 2.50 2.50 3 4

So range = 4 - 0.50 = 3.50

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1

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step-by-step explanation: