In order to estimate the percentage of campers at her camp that bring their lunch, lori randomly surveys 85 of the 300 campers at her camp. she then calculates the percentage from her sample that bring their lunch.
will this likely give an accurate estimate of this percentage?
select from the drop-down menus to correctly complete the statement.
lori's method islikely or not likely to give an accurate estimate of this percentage since she surveyed a randmly selected group of campers or she did not survey every camper from her camp.

Step-by-step explanation:

Given that to find the estimate of campers who bring lunch, Lori adapted to random sampling.

Random sampling is the accurate, reliable method for estimate of population parameters provided samples are drawn strictly at random and sample size is reasonably high.

Here randomness is ensured and also 300 is a good sample size.

Hence this is likely to give an  accurate estimate of this percentage of campers at her camp that bring their lunch.

Lori's method is likely to give an accurate estimate of this percentage since she surveyed a randomly selected group of campers

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places