Sofia and Zara throw two dice and add the scores to get the total.

Sofia makes the predication: $7$ is the most likely total.
Zara makes the predication: All totals are equally likely.
They throw two dice $100$ times. Their results are shown in the table.

$10$	$7$	$5$	$2$	$10$	$5$	$10$	$9$	$10$	$4$
$7$	$4$	$3$	$7$	$6$	$8$	$7$	$8$	$11$	$9$
$6$	$4$	$10$	$9$	$8$	$6$	$6$	$11$	$8$	$10$
$7$	$7$	$4$	$4$	$5$	$7$	$7$	$7$	$11$	$9$
$9$	$10$	$9$	$9$	$7$	$3$	$8$	$4$	$5$	$10$
$5$	$10$	$8$	$5$	$5$	$6$	$8$	$9$	$3$	$5$
$9$	$5$	$7$	$6$	$8$	$9$	$10$	$7$	$7$	$6$
$9$	$8$	$8$	$3$	$3$	$2$	$4$	$6$	$10$	$9$
$8$	$10$	$5$	$7$	$7$	$9$	$10$	$7$	$10$	$4$
$4$	$2$	$10$	$5$	$4$	$4$	$8$	$9$	$5$	$7$

Show the results in a bar chart.

Sofia and Zara throw two dice and add the scores to get the total.

Sofia makes the predication: $7$ is the most likely total.
Zara makes the predication: All totals are equally likely.
They throw two dice $100$ times. Their results are shown in the table.

Is Sofia's prediction correct? Give a reason for your answer.

Sofia and Zara throw two dice and add the scores to get the total.

Sofia makes the predication: $7$ is the most likely total.
Zara makes the predication: All totals are equally likely.
They throw two dice $100$ times. Their results are shown in the table.

Is Zara's prediction correct? Give a reason for your answer.

Wei is investigating at her school that how many hours of homework the learners in her year do each evening. She predicts that most learners do more than $2$ hours of learning each evening.

How can she collect data to test this prediction?

Wei is investigating at her school that how many hours of homework the learners in her year do each evening. She predicts that most learners do more than $2$ hours of learning each evening.

Give a reason why it is easier to use a sample than the whole year group.

Wei is investigating at her school that how many hours of homework the learners in her year do each evening. She predicts that most learners do more than $2$ hours of learning each evening.

What data does she need to collect?

Wei is investigating at her school that how many hours of homework the learners in her year do each evening. She predicts that most learners do more than $2$ hours of learning each evening.

Here are the results of the questions given to $25$ learners.

How many hours of homework did you do last night?

Show the results in a suitable chart.

Wei is investigating at her school that how many hours of homework the learners in her year do each evening. She predicts that most learners do more than $2$ hours of learning each evening.

Here are the results of the questions given to $25$ learners.

How many hours of homework did you do last night?

What can you say about Wei’s prediction?

Why is it not possible to collect data from the whole population?