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Chapter 2: Q 40. (page 109)

Lefties (1.1) Students were asked, 鈥淎re you righthanded, left-handed, or ambidextrous?鈥� The responses are shown below (R = right-handed;

L = left-handed; A = ambidextrous).

(a) Make an appropriate graph to display these data.

(b) Over 10,000 Canadian high school students took the Census At School survey in 2007鈥�2008. What percent of this population would you estimate is lefthanded? Justify your answer.

Short Answer

Expert verified

Part (b) The percentage of the population that is left-handed is 6%

Part (a)

Step by step solution

01

Part (a) Step 1. Given

02

Part (a) Step 2. Explanation

The frequency table for the above data is


Therefore, bar chart is drawn

03

Part (b) Step 1. Explanation

Since, 3of 50were left-handed, 350=0.06=6%

Therefore, the percentage of the population that is left-handed is 6%

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