98. jenna danced for 3 hours on sunday, 2 hours on monday and tuesday, 1 hour on thursday, 1.5 hours on…
98. jenna danced for 3 hours on sunday, 2 hours on monday and tuesday, 1 hour on thursday, 1.5 hours on friday, and 2 hours on saturday. she did not dance at all on wednesday. what is the average number of hours she danced each day? round your answer to the nearest tenth of an hour.
Answer
Explanation:
Step1: Calculate total hours danced
Add up the hours danced each day: $3 + 2+2 + 0+1 + 1.5+2=11.5$
Step2: Calculate number of days
There are 7 days in a week, so $n = 7$.
Step3: Calculate the average
Use the average formula $\bar{x}=\frac{\sum_{i = 1}^{n}x_{i}}{n}$. Here, $\bar{x}=\frac{11.5}{7}\approx1.642857$
Step4: Round the result
Round $1.642857$ to the nearest tenth. The result is $1.6$.
Answer:
$1.6$