Answer:
about 68% of brand x’s batteries have a lifespan between 95.2 hours and 108.8 hours. about 68% of brand y’s batteries have a lifespan between 98.6 hours and 101.4 hours. the life span of brand y’s battery is more likely to be consistently close to the mean.
Explanation:
According to the empirical rule (68–95–99.7 rule) for a normal distribution, 68% of the data falls within the first standard deviation (μ ± σ).
Given for brand x, mean (μ) = 102 hours and standard deviation (σ) = 6.8 hours.
first standard deviation (μ ± σ) = 102 ± 6.8 = (95.2, 108.8)
about 68% of brand x’s batteries have a lifespan between 95.2 hours and 108.8 hours.
Given for brand y, mean (μ) = 100 hours and standard deviation (σ) = 1.4 hours.
first standard deviation (μ ± σ) = 100 ± 1.4 = (98.6, 101.4)
about 68% of brand x’s batteries have a lifespan between 98.6 hours and 101.4 hours.
Since the standard deviation of brand y is smaller than that of brand x, brand y battery is more likely to be consistently close to the mean
Answer:
Hydro energy
Explanation:
Hydro energy is a renewable marine resource that can be used to generate electricity.
It is derived from a dam that enables the formation of a controlled flow of water that will steer a turbine, thereby generating electricity.
Another renewable marine resource is Tidal energy that uses tidal currents to propel turbine generators in generating electricity.
Answer:
B. allows businesses to operate without much government
interference.
Explanation:
The free enterprise system is an economic model where government participation is minimal. The private sector owns the majority of factors of production. The laws of supply and demand determine market prices, the type, quality, and quantity of goods to be availed for sale.
The government's role is mainly regulatory. Buyers and sellers have the freedom to choose what to sell or buy. Profits are a big motivation to do business under the free enterprise system.
"Creative thinking is a skill which lets you consider things from a fresh perspective and different angles. It's an inventive thought process which results in surprising conclusions and new ways of doing things. "
Given:
standard hours: 2,500 dl for 1,000 units
actual hours: 2,400 dl for 900 units
Standard direct labor-hours per unit = 2,500 direct labor-hours ÷ 1,000 units= 2.5 direct labor-hours per unit
Standard hours allowed = 2.5 direct labor hours per unit × 900 units<span>= 2,250 hours
The standard hours allowed for may production would be 2,250 hours.</span>
