How much data is needed to have a representative sample of the population?

1. 10 to 20 items.

2. At least 100 items.

3. All of the population.

4. It depends on the size of the population.

Christine has nine shining rings. If six of them are gold, how many are not gold?

At a glance, kendra believes that the function represented on how can kendra determine if the function is actually linear?

25/5 + 2 (36/6-1) / 3+6 + 2

A cylinder has a base area of 20.7 in2 and a lateral area of 25.3 in2. What is the surface area of the cylinder? Use 3.14 for π and round to the nearest tenth, if needed.

In a class of 666, there are 444 students who are secretly robots. If the teacher chooses 222 students, what is the probability that neither of them are secretly robots?

The half-life of a certain substance is 26 years. How long will it take for a sample of this substance to decay to 92 % of its original amount? Use the exponential decay model, A = A_0 e kt, to solve. years (Round to one decimal place as needed.)

An English professor assigns letter grades on a test according to the following scheme. A: Top 7% of scores B: Scores below the top 7% and above the bottom 59% C: Scores below the top 41% and above the bottom 18% D: Scores below the top 82% and

The jewerly store has a ring with a retail price of $372.50 it is on sale for 60% off the retail price what is the discount

The cheetah population in the Sahara Desert is declining at a rate of 4.5% per year. The population was 925 in the year 2005. Which answer is the best prediction of the population in year 2012? 1250 412 670 901

A building has a height of 100ft and a length of 100ft. An architect wants to add to the building by doubling the length of the building. What is the length of the building after the addition?