58-10=48 = 1 hour
48/12= 4 = 4 hours
Aaron was the sitter for 5 hours
The average was 34 yards because 35+30+37= 102 then you do 102/3
C . the domain stays the same but the range changes
Answer:
12 minutes
Step-by-step explanation:
First we need to look at the change in the two temperatures:
86.6-80.8= 5.8
Next we know that every minute the temperature drops half of a degree so we will find how many minutes until it reaches 80.8:
5.8/0.5= 11.6
Round the answer up to 12 minutes to have a whole number and the pool will be at 80.8 degrees or lower in 12 minutes.
The standard deviation is 6.09
The variance is 37.04.
<h3>What is the standard deviation and variance?</h3>
Standard deviation is used to determine how the values in a group differs from the mean of the values in the group. It is a measure of variation.
In order to determine the standard deviation, take the following steps:
- Determine the mean of the observation: (162 + 166 + 179 + 170 + 175) / 5 = 170.40
- Determine the difference between each value and the mean and then square the result:
(162 - 170.40)² + (166- 170.40)² + (179 - 170.40)² + (170 - 170.40)² + (175 - 170.40)²
70.56 + 19.36 + 73.96 + 0.16 + 21.16 = 185.20
- Determine the mean of the sum of the squared differences and then find the square root of the mean:
√185.20 / 5 = 6.09
Variance measures the rate of dispersion of a data point around the dataset. It can be calculated by finding the square of the standard deviation of a dataset.
6.09² = 37.04
To learn more about standard deviation, please check: brainly.com/question/26201837
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