Number of texts sent per day Percentage of teen responses Percentage of adult responses 0 2 % 9 % 1 - 10 22 % 51 % 11 - 20 11 % 13 % 21 - 50 18 % 12 % 51 - 100 18 % 7 % 101 or more 29 % 8 % Draw a graph for how you think the same age groups would have responded ten years ago. Explain your graph.

Ten years ago usage of technical gadget was not more. And very less adult was using gadgets. So, the percentage of adult response can less as compare to teen. We can take any percentage of responses for teen and adult. Number of texts sent per day Percentage of teen responses Percentage of adult responses 0 2 % 0 % 1 - 10 10 % 4 % 11 - 20 15 % 10 % 21 - 50 20 % 17 % 51 - 100 18 % 7 % 101 or more 25 % 10 % So, the circular graph can be

Number of texts sent per day Percentage of teen responses Percentage of adult responses 0 2 % 9 % 1 - 10 22 % 51 % 11 - 20 11 % 13 % 21 - 50 18 % 12 % 51 - 100 18 % 7 % 101 or more 29 % 8 % Draw a graph for how you think the same groups will respond ten years from now. Explain your graph

To draw a graph we have to take some percentage for ourselves. After ten year we can think that teen responses will increases because now a days usage of technical gadgets is increases. And adult responses will all also increases but not more than teen. So, the percentage can be Number of texts sent per day Percentage of teen responses Percentage of adult responses 0 5 % 9 % 1 - 10 40 % 60 % 11 - 20 20 % 35 % 21 - 50 22 % 35 % 51 - 100 40 % 20 % 101 or more 50 % 15 %

A study collected data on media usage and other elements of life for a group of 8 to 18 year old. The data is represented in table below. I am a heavy user of media I am a moderate user of media I am a light user of media I get good grades 57 % 65 % 66 % I get fair/ poor grades 47 % 31 % 23 % I have a lot of friends 93 % 91 % 91 % I get into trouble a lot 33 % 21 % 16 % Based on the table , describe characteristics of heavy users of media compared to light users . Does anything surprise you about the data?

I am a heavy user of media I am a moderate user of media I am a light user of media I get good grades 57 % 65 % 66 % I get fair/ poor grades 47 % 31 % 23 % I have a lot of friends 93 % 91 % 91 % I get into trouble a lot 33 % 21 % 16 % On the basis of table we can see that all the types of users of media have lots of friends. And even lighter users of media also get into trouble.

The following data is for the five largest African countries by population What is the difference between a rural and an urban area?

As per the given data in rural area access to uncontaminated drinking water is less as compare to urban areas.

The following data is for the five largest African countries by population Which country has the lowest percentage of access to safe drinking water in urban area?

When we compared the bars of urban areas of each country , we can see that Nigeria has the lowest percentage of access to safe drinking water.

The following data is for the five largest African countries by population Which country has the lowest percentage of access to safe drinking water in urban areas?

When we observe the graph carefully, we can see that percentage of urban area showing in Nigeria is less as compare to urban area of other countries. Thus the Nigeria has lowest percentage of access to safe drinking water in urban areas.

The following data is for the five largest African countries by population Overall , which country has the most access to safe drinking water?

Given, When we observe the graph , we can see that as compare to other country Egypt has the most access to safe drinking water.

The following data is for the five largest African countries by population Represent this data using multiple pie chat. Which representation is more effective?

The multiple pies chart is a visualisation in which multiple pies are plotted together, side by side. While a single pie chart is used to visualise the part-to-whole relationship within one group, the multiple pies are mostly used to visualise and compare data of a category across different groups. So, the pie charts of countries are Bar graphs are more effective because it difficult to compare multiple pie chart .

David Weber, Talei Kunkel, Harriet Simand and, Justin Medved Solutions for Chapter: Data Management Trends in Communities, Exercise 30: Unit review

Author:David Weber, Talei Kunkel, Harriet Simand & Justin Medved

David Weber Mathematics Solutions for Exercise - David Weber, Talei Kunkel, Harriet Simand and, Justin Medved Solutions for Chapter: Data Management Trends in Communities, Exercise 30: Unit review

Attempt the practice questions on Chapter 6: Data Management Trends in Communities, Exercise 30: Unit review with hints and solutions to strengthen your understanding. MYP Mathematics A concept-based approach 1 solutions are prepared by Experienced Embibe Experts.

Questions from David Weber, Talei Kunkel, Harriet Simand and, Justin Medved Solutions for Chapter: Data Management Trends in Communities, Exercise 30: Unit review with Hints & Solutions

EASY

MYP:1

IMPORTANT

MYP Mathematics A concept-based approach 1>Chapter 6 - Data Management Trends in Communities>Unit review>Q 10

Number of texts sent per day	Percentage of teen responses	Percentage of adult responses
$0$	$2 %$	$9 %$
$1 - 10$	$22 %$	$51 %$
$11 - 20$	$11 %$	$13 %$
$21 - 50$	$18 %$	$12 %$
$51 - 100$	$18 %$	$7 %$
$101$ or more	$29 %$	$8 %$

Draw a graph for how you think the same age groups would have responded ten years ago. Explain your graph.

EASY

MYP:1

IMPORTANT

MYP Mathematics A concept-based approach 1>Chapter 6 - Data Management Trends in Communities>Unit review>Q 10

Number of texts sent per day	Percentage of teen responses	Percentage of adult responses
$0$	$2 %$	$9 %$
$1 - 10$	$22 %$	$51 %$
$11 - 20$	$11 %$	$13 %$
$21 - 50$	$18 %$	$12 %$
$51 - 100$	$18 %$	$7 %$
$101$ or more	$29 %$	$8 %$

Draw a graph for how you think the same groups will respond ten years from now. Explain your graph

MEDIUM

MYP:1

IMPORTANT

MYP Mathematics A concept-based approach 1>Chapter 6 - Data Management Trends in Communities>Unit review>Q 11

A study collected data on media usage and other elements of life for a group of $8$ to $18$ year old. The data is represented in table below.

	I am a heavy user of media	I am a moderate user of media	I am a light user of media
I get good grades	$57 %$	$65 %$	$66 %$
I get fair/ poor grades	$47 %$	$31 %$	$23 %$
I have a lot of friends	$93 %$	$91 %$	$91 %$
I get into trouble a lot	$33 %$	$21 %$	$16 %$