Page 28 - 新思维数学学生用书3 样章

2.1 Tally charts and frequency tables

Exercise 2.1

I think that

1 You will need a coin. if we flip a coin 20 times,

there will be more heads

than tails showing.

How can we

find out?

Flip the coin 20 times.
Use tally marks to show the results of heads or tails.

Heads Tails

Write two things that you have found out using the data

in the tally chart.

1

2

You can count each result and you can compare the results.

Do you think that the same thing will happen if you repeat

the activity? Explain what you think.

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