Mathematics, 26.03.2020 01:57, ineedhelp2285
A recent survey was conducted to compare the cost of solar energy to the cost of gas or electric energy. Results of the survey revealed that the distribution of the amount of the monthly utility bill of a 3-bedroom house using gas or electric energy had a mean of $97 and a standard deviation of $12. If nothing is known about the shape of the distribution, what percentage of homes will have a monthly utility bill of less than $73?
a)at least 75%
b)at most 25%
c)at most 11.1%
d)at least 88.9%
Answers: 2
Mathematics, 21.06.2019 16:20, mattmaddox86
The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%
Answers: 2
Mathematics, 22.06.2019 01:30, paulethjara
When solving a logarithm equation, how do you find the missing variable ?
Answers: 2
Mathematics, 22.06.2019 01:30, cpulls189
Cherie works in retail and her weekly salary includes commission for the amount she sells. the equation s=400+0.15c models the relation between her weekly salary, s, in dollars and the amount of her sales, c, in dollars. interpret the slope of the equation.
Answers: 3
A recent survey was conducted to compare the cost of solar energy to the cost of gas or electric ene...
Mathematics, 16.12.2020 18:10
Mathematics, 16.12.2020 18:10