Answer:
Matching the vocabulary word with its corresponding example:
1. All children who Ski and Snowboard = population (a group of items, units or subjects which is under reference of study e.g inhabitants of a region, numbers of cars in a city e.t.c)
2. The 92 children who were asked when they took their first lesson = Sample (a part or fraction of a population selected on some basis)
3. The average age that all children take their first to lesson = Parameter (the number that summarizes some characteristics of a population
4. The average age that the 92 children took their first lesson = statistic (a sample characteristic corresponding to the population parameter used when a sample is use to make inference about a population)
5. The age that children take their first listen = variable (anything that has attribute, quality or quantity that varies or a characteristic/attribute that describes a place, person or thing)
6. The list of the 92 ages that the children from the study took the first listen = data (facts that are collected together for analysis)
Step-by-step explanation:

★ ∆ ABC is similar to ∆DEF
★ Area of triangle ABC = 64cm²
★ Area of triangle DEF = 121cm²
★ Side EF = 15.4 cm

★ Side BC

Since, ∆ ABC is similar to ∆DEF
[ Whenever two traingles are similar, the ratio of the areas of two similar triangles is equal to the square of the ratio of their corresponding sides. ]

❍ <u>Putting the</u><u> values</u>, [Given by the question]
• Area of triangle ABC = 64cm²
• Area of triangle DEF = 121cm²
• Side EF = 15.4 cm

❍ <u>By solving we get,</u>






<u>Hence, BC = 11.2 cm.</u>

★ Figure in attachment.

Answer:
ᕼEᖇE ᗩᖇE ᗰᗩᒍOᖇ ᗰᑌᔕᑕᒪEᔕ ᑌᔕEᗪ:
1. ᑭEᑕTOᖇᗩᒪIᔕ ᗰᑌᔕᑕᒪE
2. TᖇᗩᑭEᘔIᑌᔕ ᗰᑌᔕᑕᒪE
3. ᗰIᗪᗪᒪE ᗪEᒪTOIᗪ ᗰᑌᔕᑕᒪE
ᗰᑌᔕᑕᒪEᔕ Iᑎ TᕼE ᕼIᑭᔕ ᗩᑎᗪ ᗷᑌTTOᑕKᔕ ᗩᖇE ᗩᒪᔕO ᑌᔕEᗪ.