Answer:
<h3>The average weekly change in value of Jade's stock in dollars is -1.3225</h3>
Step-by-step explanation:
Given that Jade invested in the stock market.
The weekly change in value of her stock, in dollars, over 4 weeks was +23.65, -22.20, -12.75 and +5.98.
<h3>To find the average weekly change in value of her stock in dollars :</h3>
The average weekly change in value of Jade's stock is given by 





Therefore Average=-1.3225
<h3>Therefore the average weekly change in value of Jade's stock in dollars is -1.3225</h3>