# WACE Mathematics Essential General – Unit 4

4.1 Probability and relative frequencies

4.2 Earth geometry and time zones

4.3 Loans and compound interest

This unit provides students with the mathematical skills and understanding to solve problems related to probability, earth geometry and time zones, loans and compound interest. Students use the mathematical thinking process and apply the statistical investigation process to solve problems involving probability. Teachers are advised to apply the content of the three topics in this unit: Probability and relative frequencies; Earth geometry and time zones; and Loans and compound interest in a context that is meaningful and of interest to the students. Possible contexts for this unit are Finance and Travel.

It is assumed that an extensive range of technological applications and techniques will be used in teaching this unit. The ability to choose when and when not to use some technology and work flexibly with technology are important skills.

The number formats for the unit are positive and negative numbers, decimals, fractions, percentages, rates, ratios and numbers expressed with integer powers.

*Source – Western Australia School Curriculum and Standards Authority 2020*

WACE Mathematics Essential General Courses

WACE Mathematics Essential General Syllabus

## Course Content

### Probability

**Fatal error**: Uncaught Error: Call to undefined function learndash_reset_password_is_enabled() in /home/customer/www/iitutor.com/public_html/wp-content/themes/buddyboss-theme/learndash/ld30/modules/login-modal.php:167 Stack trace: #0 /home/customer/www/iitutor.com/public_html/wp-content/plugins/sfwd-lms/themes/ld30/includes/helpers.php(849): include() #1 /home/customer/www/iitutor.com/public_html/wp-content/themes/buddyboss-theme/learndash/ld30/course.php(412): learndash_get_template_part('/home/customer/...', Array, false) #2 /home/customer/www/iitutor.com/public_html/wp-content/plugins/sfwd-lms/includes/class-ld-cpt-instance.php(454): include('/home/customer/...') #3 /home/customer/www/iitutor.com/public_html/wp-includes/class-wp-hook.php(324): SFWD_CPT_Instance->template_content('\n\n\n<div class="...') #4 /home/customer/www/iitutor.com/public_html/wp-includes/plugin.php(205): WP_Hook->apply_filters('\n\n\n<div class="...', Array) #5 /home/customer/www/iitutor.com/public_html/wp-includes/post-template.php(256): apply_fi in

**/home/customer/www/iitutor.com/public_html/wp-content/themes/buddyboss-theme/learndash/ld30/modules/login-modal.php**on line

**167**