Darren kept track of the number of e-mails he received from one of his customers each day for 14 days on the dot plot. A number line goes from 1 to 12. 1 dot is above 2. 2 dots are above 7. 3 dots are above 8. 1 dot is above 9. 3 dots are above 11. 4 dots are above 12. Which statement must be true according to the dot plot?
Answers
(A) The data is skewed left and shows that on half of the days, Darren received 11 or 12 e-mails from the customer.
Step-by-step explanation:
The complete question is: Darren kept track of the number of e-mails he received from one of his customers each day for 14 days on the dot plot. A number line goes from 1 to 12. 1 dot is above 2. 2 dots are above 7. 3 dots are above 8. 1 dot is above 9. 3 dots are above 11. 4 dots are above 12. Which statement must be true according to the dot plot?
(A) The data is skewed left and shows that on half of the days, Darren received 11 or 12 e-mails from the customer.
(B) The data is skewed left and shows that on half of the days, Darren received 7 to 9 e-mails from the customer.
(C) The data is skewed right and shows that on half of the days, Darren received 11 or 12 e-mails from the customer.
(D) The data is skewed right and shows that on half of the days, Darren received 7 to 9 e-mails from the customer.
We are given that a number line goes from 1 to 12.
- 1 dot is above 2.
- 2 dots are above 7.
- 3 dots are above 8.
- 1 dot is above 9.
- 3 dots are above 11.
- 4 dots are above 12.
When we see the number line from 1 to 12 and plot each of these given points, it is clear that most of the points are plotted to the right of the number line, i.e. at 7, 8, 11 and 12.
At 11 and 12 half of the days are plotted as 4 on 12 and 3 on 11 which is total of 7(half of 14 days).
And since most of the points are plotted to the right of the number line, this means that the data is skewed to the left as there are very less values that are plotted to the left of the number line (only 1 dot ).
So, this means that the correct statement is that the data is skewed left and shows that on half of the days, Darren received 11 or 12 e-mails from the customer.
Answer:
A. The data is skewed left and shows that on half of the days, Darren received 11 or 12 e-mails from the customer.
Step-by-step explanation:
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