The table shows information about the times, $$$t$$$ seconds, taken by each of 100 students to solve a puzzle. Emmanuel draws a histogram to show this information. The table shows the heights, in $$$\mathrm{cm}$$$, of some of the bars for this histogram. Complete the table.

Mathematics

IGCSE&ALevel

CAIE

Exam No：0580_w20_qp_23 Year：2020 Question No：22(b)

Answer:

6 and $2.4$

Knowledge points:

E9.3 Construct and interpret bar charts, pie charts, pictograms, stem-and-leaf diagrams, simple frequency distributions, histograms with equal and unequal intervals and scatter diagrams. (For unequal intervals on histograms, areas are proportional to frequencies and the vertical axis is labelled ‘frequency density’.)

Solution:

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The table shows information about the times, $$\(t\)$$ seconds, taken by each of 100 students to solve a puzzle. Emmanuel draws a histogram to show this information. The table shows the heights, in $$\(\mathrm{cm}\)$$, of some of the bars for this histogram. Complete the table.

Answer:

Knowledge points:

Solution:

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