Answer:
1992.38
Step-by-step explanation:
The mean, or average, of a set of data points is found by adding all the values together and dividing by the number of values.
Sum:
1911.56 + 1956.69 + 1903.16 + 1958.82 + 1910.87 + 1983.14 + 2014.12 + 2023.86 + 2057.26 + 2034.21 + 2087.73 + 2067.14 = 23908.56
Divide:
There are 12 numbers, so divide 23908.56 by 12:
23908.56 / 12 = 1992.38
The average is thus 1992.38.
<em>~ an aesthetics lover</em>
Answer:
4.72 hours/day
Step-by-step explanation:
Mean time spent watching TV (μ) = 2.8 hours a day
Standard deviation (σ) = 1.5 hours a day
The 90th percentile (upper 10%) of a normal distribution has an equivalent z-score of roughly z = 1.282. The minimum time spent watching TV, X, at the 90th percentile is:
On a typical day, you must watch at least 4.72 hours of TV to be in the upper 10%.
20 minutes because 9/9 is simplified to 1 as 5/5 is simplified to 1
Calculation = 20/10
Number of cupcakes Victor makes = 20
He puts them in equal rows:
Each row contains = 10 cupcakes
To know the number of rows he placed the 20 cupcakes,
we would divide 20 by 10

Calculation = 20/10
The number of rows of cupcakes Victor makes = 2