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Numeracy Intermediate November 2020 Unit 1 Q5

WJECIntermediateCurrent spec3 marksAverages (including IQR)Bar Charts & Pictograms

5. In an office, the ICT technician recorded the number of attempts each of 75 employees took to enter their correct password into a computer.

The results are displayed below.

Vertical line graph of frequency against number of attempts: 1 attempt 34, 2 attempts 8, 3 attempts 28, 4 attempts 5
(a) What was the modal number of attempts taken to enter the correct password?
Circle your answer. [1]

1      2      2·5      3      4

(b) What was the median number of attempts taken to enter the correct password?
Circle your answer. [1]

1      2      2·5      3      4

(c) A further 10 employees attempted to enter their correct password into a computer.
The median number of attempts for all these 85 employees is 3.

Did any of these 10 employees take fewer than 3 attempts to enter their correct password?

Yes ☐      No ☐

You must show working to support your answer. [1]